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Finding the Fourth Proportional to 672,602.63, 1,006,411.84 and 539,077.91

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Solution

The fourth proportional to 672,602.63, 1,006,411.84 and 539,077.91 is: 806,619.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,602.63 : 1,006,411.84 = 539,077.91 : x
  2. Step 2: Convert to fraction form
    672,602.63/1,006,411.84 = 539,077.91/x
  3. Step 3: Cross multiply
    672,602.63x = 1,006,411.84 × 539,077.91
  4. Step 4: Simplify right side
    672,602.63x = 542,534,384,926.70
  5. Step 5: Solve for x
    x = 542,534,384,926.70/672,602.63
  6. Step 6: Final answer
    x = 806,619.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.