Home / 678,374.10-1,017,561.15-205,010.10

Finding the Fourth Proportional to 678,374.10, 1,017,561.15 and 205,010.10

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Solution

The fourth proportional to 678,374.10, 1,017,561.15 and 205,010.10 is: 307,515.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,374.10 : 1,017,561.15 = 205,010.10 : x
  2. Step 2: Convert to fraction form
    678,374.10/1,017,561.15 = 205,010.10/x
  3. Step 3: Cross multiply
    678,374.10x = 1,017,561.15 × 205,010.10
  4. Step 4: Simplify right side
    678,374.10x = 208,610,313,117.62
  5. Step 5: Solve for x
    x = 208,610,313,117.62/678,374.10
  6. Step 6: Final answer
    x = 307,515.15

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Double scale
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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.