Home / 919,148.20-1,376,000.70-683,535.40

Finding the Fourth Proportional to 919,148.20, 1,376,000.70 and 683,535.40

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Solution

The fourth proportional to 919,148.20, 1,376,000.70 and 683,535.40 is: 1,023,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,148.20 : 1,376,000.70 = 683,535.40 : x
  2. Step 2: Convert to fraction form
    919,148.20/1,376,000.70 = 683,535.40/x
  3. Step 3: Cross multiply
    919,148.20x = 1,376,000.70 × 683,535.40
  4. Step 4: Simplify right side
    919,148.20x = 940,545,188,874.78
  5. Step 5: Solve for x
    x = 940,545,188,874.78/919,148.20
  6. Step 6: Final answer
    x = 1,023,279.15

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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.