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Finding the Fourth Proportional to 571,503.31, 788,700.17 and 326,509.49

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Solution

The fourth proportional to 571,503.31, 788,700.17 and 326,509.49 is: 450,597.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,503.31 : 788,700.17 = 326,509.49 : x
  2. Step 2: Convert to fraction form
    571,503.31/788,700.17 = 326,509.49/x
  3. Step 3: Cross multiply
    571,503.31x = 788,700.17 × 326,509.49
  4. Step 4: Simplify right side
    571,503.31x = 257,518,090,269.61
  5. Step 5: Solve for x
    x = 257,518,090,269.61/571,503.31
  6. Step 6: Final answer
    x = 450,597.72

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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.