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Finding the Fourth Proportional to 571,259.52, 788,338.78 and 316,610.91

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Solution

The fourth proportional to 571,259.52, 788,338.78 and 316,610.91 is: 436,923.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,259.52 : 788,338.78 = 316,610.91 : x
  2. Step 2: Convert to fraction form
    571,259.52/788,338.78 = 316,610.91/x
  3. Step 3: Cross multiply
    571,259.52x = 788,338.78 × 316,610.91
  4. Step 4: Simplify right side
    571,259.52x = 249,596,657,732.56
  5. Step 5: Solve for x
    x = 249,596,657,732.56/571,259.52
  6. Step 6: Final answer
    x = 436,923.41

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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.