Home / 1,187,788.80-1,781,683.20-556,766.40

Finding the Fourth Proportional to 1,187,788.80, 1,781,683.20 and 556,766.40

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Solution

The fourth proportional to 1,187,788.80, 1,781,683.20 and 556,766.40 is: 835,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,788.80 : 1,781,683.20 = 556,766.40 : x
  2. Step 2: Convert to fraction form
    1,187,788.80/1,781,683.20 = 556,766.40/x
  3. Step 3: Cross multiply
    1,187,788.80x = 1,781,683.20 × 556,766.40
  4. Step 4: Simplify right side
    1,187,788.80x = 991,981,341,204.48
  5. Step 5: Solve for x
    x = 991,981,341,204.48/1,187,788.80
  6. Step 6: Final answer
    x = 835,149.60

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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.