Home / 621,624.60-933,128.10-385,234.20

Finding the Fourth Proportional to 621,624.60, 933,128.10 and 385,234.20

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Solution

The fourth proportional to 621,624.60, 933,128.10 and 385,234.20 is: 578,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,624.60 : 933,128.10 = 385,234.20 : x
  2. Step 2: Convert to fraction form
    621,624.60/933,128.10 = 385,234.20/x
  3. Step 3: Cross multiply
    621,624.60x = 933,128.10 × 385,234.20
  4. Step 4: Simplify right side
    621,624.60x = 359,472,857,101.02
  5. Step 5: Solve for x
    x = 359,472,857,101.02/621,624.60
  6. Step 6: Final answer
    x = 578,279.65

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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.