Home / 678,593.40-1,017,890.10-627,271.80

Finding the Fourth Proportional to 678,593.40, 1,017,890.10 and 627,271.80

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Solution

The fourth proportional to 678,593.40, 1,017,890.10 and 627,271.80 is: 940,907.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,593.40 : 1,017,890.10 = 627,271.80 : x
  2. Step 2: Convert to fraction form
    678,593.40/1,017,890.10 = 627,271.80/x
  3. Step 3: Cross multiply
    678,593.40x = 1,017,890.10 × 627,271.80
  4. Step 4: Simplify right side
    678,593.40x = 638,493,755,229.18
  5. Step 5: Solve for x
    x = 638,493,755,229.18/678,593.40
  6. Step 6: Final answer
    x = 940,907.70

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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.