Home / 1,937,545.20-2,905,005.60-990,136.80

Finding the Fourth Proportional to 1,937,545.20, 2,905,005.60 and 990,136.80

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Solution

The fourth proportional to 1,937,545.20, 2,905,005.60 and 990,136.80 is: 1,484,534.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937,545.20 : 2,905,005.60 = 990,136.80 : x
  2. Step 2: Convert to fraction form
    1,937,545.20/2,905,005.60 = 990,136.80/x
  3. Step 3: Cross multiply
    1,937,545.20x = 2,905,005.60 × 990,136.80
  4. Step 4: Simplify right side
    1,937,545.20x = 2,876,352,948,766.08
  5. Step 5: Solve for x
    x = 2,876,352,948,766.08/1,937,545.20
  6. Step 6: Final answer
    x = 1,484,534.63

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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.