Home / 858,234.10-1,287,934.35-479,154.10

Finding the Fourth Proportional to 858,234.10, 1,287,934.35 and 479,154.10

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Solution

The fourth proportional to 858,234.10, 1,287,934.35 and 479,154.10 is: 719,056.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,234.10 : 1,287,934.35 = 479,154.10 : x
  2. Step 2: Convert to fraction form
    858,234.10/1,287,934.35 = 479,154.10/x
  3. Step 3: Cross multiply
    858,234.10x = 1,287,934.35 × 479,154.10
  4. Step 4: Simplify right side
    858,234.10x = 617,119,024,333.34
  5. Step 5: Solve for x
    x = 617,119,024,333.34/858,234.10
  6. Step 6: Final answer
    x = 719,056.75

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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.