Home / 678,425.10-1,017,637.65-205,061.10

Finding the Fourth Proportional to 678,425.10, 1,017,637.65 and 205,061.10

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Solution

The fourth proportional to 678,425.10, 1,017,637.65 and 205,061.10 is: 307,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,425.10 : 1,017,637.65 = 205,061.10 : x
  2. Step 2: Convert to fraction form
    678,425.10/1,017,637.65 = 205,061.10/x
  3. Step 3: Cross multiply
    678,425.10x = 1,017,637.65 × 205,061.10
  4. Step 4: Simplify right side
    678,425.10x = 208,677,895,910.42
  5. Step 5: Solve for x
    x = 208,677,895,910.42/678,425.10
  6. Step 6: Final answer
    x = 307,591.65

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Similar ratio
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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.