Home / 887,267.10-1,330,900.65-414,000.30

Finding the Fourth Proportional to 887,267.10, 1,330,900.65 and 414,000.30

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Solution

The fourth proportional to 887,267.10, 1,330,900.65 and 414,000.30 is: 621,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,267.10 : 1,330,900.65 = 414,000.30 : x
  2. Step 2: Convert to fraction form
    887,267.10/1,330,900.65 = 414,000.30/x
  3. Step 3: Cross multiply
    887,267.10x = 1,330,900.65 × 414,000.30
  4. Step 4: Simplify right side
    887,267.10x = 550,993,268,370.20
  5. Step 5: Solve for x
    x = 550,993,268,370.20/887,267.10
  6. Step 6: Final answer
    x = 621,000.45

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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.