Home / 918,136.60-1,377,204.90-912,887.80

Finding the Fourth Proportional to 918,136.60, 1,377,204.90 and 912,887.80

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Solution

The fourth proportional to 918,136.60, 1,377,204.90 and 912,887.80 is: 1,369,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,136.60 : 1,377,204.90 = 912,887.80 : x
  2. Step 2: Convert to fraction form
    918,136.60/1,377,204.90 = 912,887.80/x
  3. Step 3: Cross multiply
    918,136.60x = 1,377,204.90 × 912,887.80
  4. Step 4: Simplify right side
    918,136.60x = 1,257,233,551,310.22
  5. Step 5: Solve for x
    x = 1,257,233,551,310.22/918,136.60
  6. Step 6: Final answer
    x = 1,369,331.70

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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.