Home / 705,878.30-1,058,817.45-407,279.90

Finding the Fourth Proportional to 705,878.30, 1,058,817.45 and 407,279.90

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Solution

The fourth proportional to 705,878.30, 1,058,817.45 and 407,279.90 is: 610,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,878.30 : 1,058,817.45 = 407,279.90 : x
  2. Step 2: Convert to fraction form
    705,878.30/1,058,817.45 = 407,279.90/x
  3. Step 3: Cross multiply
    705,878.30x = 1,058,817.45 × 407,279.90
  4. Step 4: Simplify right side
    705,878.30x = 431,235,065,154.26
  5. Step 5: Solve for x
    x = 431,235,065,154.26/705,878.30
  6. Step 6: Final answer
    x = 610,919.85

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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.