Home / 1,779,046.40-2,668,545.68-431,220.56

Finding the Fourth Proportional to 1,779,046.40, 2,668,545.68 and 431,220.56

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Solution

The fourth proportional to 1,779,046.40, 2,668,545.68 and 431,220.56 is: 646,825.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779,046.40 : 2,668,545.68 = 431,220.56 : x
  2. Step 2: Convert to fraction form
    1,779,046.40/2,668,545.68 = 431,220.56/x
  3. Step 3: Cross multiply
    1,779,046.40x = 2,668,545.68 × 431,220.56
  4. Step 4: Simplify right side
    1,779,046.40x = 1,150,731,762,515.18
  5. Step 5: Solve for x
    x = 1,150,731,762,515.18/1,779,046.40
  6. Step 6: Final answer
    x = 646,825.04

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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.