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Finding the Fourth Proportional to 665,260.29, 918,059.13 and 363,454.29

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Solution

The fourth proportional to 665,260.29, 918,059.13 and 363,454.29 is: 501,566.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,260.29 : 918,059.13 = 363,454.29 : x
  2. Step 2: Convert to fraction form
    665,260.29/918,059.13 = 363,454.29/x
  3. Step 3: Cross multiply
    665,260.29x = 918,059.13 × 363,454.29
  4. Step 4: Simplify right side
    665,260.29x = 333,672,529,272.17
  5. Step 5: Solve for x
    x = 333,672,529,272.17/665,260.29
  6. Step 6: Final answer
    x = 501,566.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.