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Finding the Fourth Proportional to 529,358.40, 794,037.60 and 403,387.20

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Solution

The fourth proportional to 529,358.40, 794,037.60 and 403,387.20 is: 605,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,358.40 : 794,037.60 = 403,387.20 : x
  2. Step 2: Convert to fraction form
    529,358.40/794,037.60 = 403,387.20/x
  3. Step 3: Cross multiply
    529,358.40x = 794,037.60 × 403,387.20
  4. Step 4: Simplify right side
    529,358.40x = 320,304,604,158.72
  5. Step 5: Solve for x
    x = 320,304,604,158.72/529,358.40
  6. Step 6: Final answer
    x = 605,080.80

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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.