Home / 672,285.40-1,008,428.10-668,348.80

Finding the Fourth Proportional to 672,285.40, 1,008,428.10 and 668,348.80

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Solution

The fourth proportional to 672,285.40, 1,008,428.10 and 668,348.80 is: 1,002,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,285.40 : 1,008,428.10 = 668,348.80 : x
  2. Step 2: Convert to fraction form
    672,285.40/1,008,428.10 = 668,348.80/x
  3. Step 3: Cross multiply
    672,285.40x = 1,008,428.10 × 668,348.80
  4. Step 4: Simplify right side
    672,285.40x = 673,981,710,521.28
  5. Step 5: Solve for x
    x = 673,981,710,521.28/672,285.40
  6. Step 6: Final answer
    x = 1,002,523.20

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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.