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Finding the Fourth Proportional to 571,365, 788,484.42 and 316,754.28

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Solution

The fourth proportional to 571,365, 788,484.42 and 316,754.28 is: 437,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,365 : 788,484.42 = 316,754.28 : x
  2. Step 2: Convert to fraction form
    571,365/788,484.42 = 316,754.28/x
  3. Step 3: Cross multiply
    571,365x = 788,484.42 × 316,754.28
  4. Step 4: Simplify right side
    571,365x = 249,755,814,748.32
  5. Step 5: Solve for x
    x = 249,755,814,748.32/571,365
  6. Step 6: Final answer
    x = 437,121.31

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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.