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Finding the Fourth Proportional to 571,622.67, 788,839.31 and 316,973.87

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Solution

The fourth proportional to 571,622.67, 788,839.31 and 316,973.87 is: 437,423.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,622.67 : 788,839.31 = 316,973.87 : x
  2. Step 2: Convert to fraction form
    571,622.67/788,839.31 = 316,973.87/x
  3. Step 3: Cross multiply
    571,622.67x = 788,839.31 × 316,973.87
  4. Step 4: Simplify right side
    571,622.67x = 250,041,443,369.76
  5. Step 5: Solve for x
    x = 250,041,443,369.76/571,622.67
  6. Step 6: Final answer
    x = 437,423.95

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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.