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Finding the Fourth Proportional to 571,117.30, 788,141.88 and 316,468.48

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Solution

The fourth proportional to 571,117.30, 788,141.88 and 316,468.48 is: 436,726.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,117.30 : 788,141.88 = 316,468.48 : x
  2. Step 2: Convert to fraction form
    571,117.30/788,141.88 = 316,468.48/x
  3. Step 3: Cross multiply
    571,117.30x = 788,141.88 × 316,468.48
  4. Step 4: Simplify right side
    571,117.30x = 249,422,062,787.94
  5. Step 5: Solve for x
    x = 249,422,062,787.94/571,117.30
  6. Step 6: Final answer
    x = 436,726.51

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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.