Home / 887,064.90-1,330,597.35-255,999.30

Finding the Fourth Proportional to 887,064.90, 1,330,597.35 and 255,999.30

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Solution

The fourth proportional to 887,064.90, 1,330,597.35 and 255,999.30 is: 383,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,064.90 : 1,330,597.35 = 255,999.30 : x
  2. Step 2: Convert to fraction form
    887,064.90/1,330,597.35 = 255,999.30/x
  3. Step 3: Cross multiply
    887,064.90x = 1,330,597.35 × 255,999.30
  4. Step 4: Simplify right side
    887,064.90x = 340,631,990,181.86
  5. Step 5: Solve for x
    x = 340,631,990,181.86/887,064.90
  6. Step 6: Final answer
    x = 383,998.95

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.