Home / 710,156.40-1,065,234.60-378,380.40

Finding the Fourth Proportional to 710,156.40, 1,065,234.60 and 378,380.40

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Solution

The fourth proportional to 710,156.40, 1,065,234.60 and 378,380.40 is: 567,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,156.40 : 1,065,234.60 = 378,380.40 : x
  2. Step 2: Convert to fraction form
    710,156.40/1,065,234.60 = 378,380.40/x
  3. Step 3: Cross multiply
    710,156.40x = 1,065,234.60 × 378,380.40
  4. Step 4: Simplify right side
    710,156.40x = 403,063,894,041.84
  5. Step 5: Solve for x
    x = 403,063,894,041.84/710,156.40
  6. Step 6: Final answer
    x = 567,570.60

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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.