Home / 1,280,117.76-1,766,577.28-707,145.92

Finding the Fourth Proportional to 1,280,117.76, 1,766,577.28 and 707,145.92

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Solution

The fourth proportional to 1,280,117.76, 1,766,577.28 and 707,145.92 is: 975,869.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,117.76 : 1,766,577.28 = 707,145.92 : x
  2. Step 2: Convert to fraction form
    1,280,117.76/1,766,577.28 = 707,145.92/x
  3. Step 3: Cross multiply
    1,280,117.76x = 1,766,577.28 × 707,145.92
  4. Step 4: Simplify right side
    1,280,117.76x = 1,249,227,915,916.70
  5. Step 5: Solve for x
    x = 1,249,227,915,916.70/1,280,117.76
  6. Step 6: Final answer
    x = 975,869.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.