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Finding the Fourth Proportional to 695,273.28, 959,490.72 and 453,710.40

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Solution

The fourth proportional to 695,273.28, 959,490.72 and 453,710.40 is: 626,129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,273.28 : 959,490.72 = 453,710.40 : x
  2. Step 2: Convert to fraction form
    695,273.28/959,490.72 = 453,710.40/x
  3. Step 3: Cross multiply
    695,273.28x = 959,490.72 × 453,710.40
  4. Step 4: Simplify right side
    695,273.28x = 435,330,918,367.49
  5. Step 5: Solve for x
    x = 435,330,918,367.49/695,273.28
  6. Step 6: Final answer
    x = 626,129.22

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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.