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Finding the Fourth Proportional to 672,638.98, 927,670.72 and 568,373.74

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Solution

The fourth proportional to 672,638.98, 927,670.72 and 568,373.74 is: 783,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,638.98 : 927,670.72 = 568,373.74 : x
  2. Step 2: Convert to fraction form
    672,638.98/927,670.72 = 568,373.74/x
  3. Step 3: Cross multiply
    672,638.98x = 927,670.72 × 568,373.74
  4. Step 4: Simplify right side
    672,638.98x = 527,263,676,614.89
  5. Step 5: Solve for x
    x = 527,263,676,614.89/672,638.98
  6. Step 6: Final answer
    x = 783,873.21

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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.