Home / 678,755.10-1,018,132.65-346,287.90

Finding the Fourth Proportional to 678,755.10, 1,018,132.65 and 346,287.90

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Solution

The fourth proportional to 678,755.10, 1,018,132.65 and 346,287.90 is: 519,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,755.10 : 1,018,132.65 = 346,287.90 : x
  2. Step 2: Convert to fraction form
    678,755.10/1,018,132.65 = 346,287.90/x
  3. Step 3: Cross multiply
    678,755.10x = 1,018,132.65 × 346,287.90
  4. Step 4: Simplify right side
    678,755.10x = 352,567,017,289.94
  5. Step 5: Solve for x
    x = 352,567,017,289.94/678,755.10
  6. Step 6: Final answer
    x = 519,431.85

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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.