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Finding the Fourth Proportional to 672,706.47, 928,342.18 and 366,780.34

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Solution

The fourth proportional to 672,706.47, 928,342.18 and 366,780.34 is: 506,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,706.47 : 928,342.18 = 366,780.34 : x
  2. Step 2: Convert to fraction form
    672,706.47/928,342.18 = 366,780.34/x
  3. Step 3: Cross multiply
    672,706.47x = 928,342.18 × 366,780.34
  4. Step 4: Simplify right side
    672,706.47x = 340,497,660,416.74
  5. Step 5: Solve for x
    x = 340,497,660,416.74/672,706.47
  6. Step 6: Final answer
    x = 506,160.82

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1.5x scale

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.