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Finding the Fourth Proportional to 672,560.91, 928,393.13 and 492,701.35

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Solution

The fourth proportional to 672,560.91, 928,393.13 and 492,701.35 is: 680,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,560.91 : 928,393.13 = 492,701.35 : x
  2. Step 2: Convert to fraction form
    672,560.91/928,393.13 = 492,701.35/x
  3. Step 3: Cross multiply
    672,560.91x = 928,393.13 × 492,701.35
  4. Step 4: Simplify right side
    672,560.91x = 457,420,548,481.73
  5. Step 5: Solve for x
    x = 457,420,548,481.73/672,560.91
  6. Step 6: Final answer
    x = 680,117.65

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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.