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Finding the Fourth Proportional to 602,805.60, 904,359.60 and 265,910.40

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Solution

The fourth proportional to 602,805.60, 904,359.60 and 265,910.40 is: 398,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,805.60 : 904,359.60 = 265,910.40 : x
  2. Step 2: Convert to fraction form
    602,805.60/904,359.60 = 265,910.40/x
  3. Step 3: Cross multiply
    602,805.60x = 904,359.60 × 265,910.40
  4. Step 4: Simplify right side
    602,805.60x = 240,478,622,979.84
  5. Step 5: Solve for x
    x = 240,478,622,979.84/602,805.60
  6. Step 6: Final answer
    x = 398,932.30

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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.