Home / 1,253,136.90-1,877,177.18-578,280.72

Finding the Fourth Proportional to 1,253,136.90, 1,877,177.18 and 578,280.72

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Solution

The fourth proportional to 1,253,136.90, 1,877,177.18 and 578,280.72 is: 866,254.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,136.90 : 1,877,177.18 = 578,280.72 : x
  2. Step 2: Convert to fraction form
    1,253,136.90/1,877,177.18 = 578,280.72/x
  3. Step 3: Cross multiply
    1,253,136.90x = 1,877,177.18 × 578,280.72
  4. Step 4: Simplify right side
    1,253,136.90x = 1,085,535,371,217.97
  5. Step 5: Solve for x
    x = 1,085,535,371,217.97/1,253,136.90
  6. Step 6: Final answer
    x = 866,254.41

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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.