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Finding the Fourth Proportional to 571,402.28, 788,375.54 and 450,167.32

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Solution

The fourth proportional to 571,402.28, 788,375.54 and 450,167.32 is: 621,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,402.28 : 788,375.54 = 450,167.32 : x
  2. Step 2: Convert to fraction form
    571,402.28/788,375.54 = 450,167.32/x
  3. Step 3: Cross multiply
    571,402.28x = 788,375.54 × 450,167.32
  4. Step 4: Simplify right side
    571,402.28x = 354,900,903,995.35
  5. Step 5: Solve for x
    x = 354,900,903,995.35/571,402.28
  6. Step 6: Final answer
    x = 621,105.16

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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.