Home / 769,737.60-1,155,988.80-559,612.80

Finding the Fourth Proportional to 769,737.60, 1,155,988.80 and 559,612.80

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Solution

The fourth proportional to 769,737.60, 1,155,988.80 and 559,612.80 is: 840,424.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,737.60 : 1,155,988.80 = 559,612.80 : x
  2. Step 2: Convert to fraction form
    769,737.60/1,155,988.80 = 559,612.80/x
  3. Step 3: Cross multiply
    769,737.60x = 1,155,988.80 × 559,612.80
  4. Step 4: Simplify right side
    769,737.60x = 646,906,129,136.64
  5. Step 5: Solve for x
    x = 646,906,129,136.64/769,737.60
  6. Step 6: Final answer
    x = 840,424.23

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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.