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Finding the Fourth Proportional to 545,897.59, 753,338.72 and 316,587.91

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Solution

The fourth proportional to 545,897.59, 753,338.72 and 316,587.91 is: 436,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,897.59 : 753,338.72 = 316,587.91 : x
  2. Step 2: Convert to fraction form
    545,897.59/753,338.72 = 316,587.91/x
  3. Step 3: Cross multiply
    545,897.59x = 753,338.72 × 316,587.91
  4. Step 4: Simplify right side
    545,897.59x = 238,497,930,886.88
  5. Step 5: Solve for x
    x = 238,497,930,886.88/545,897.59
  6. Step 6: Final answer
    x = 436,891.34

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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.