Home / 1,813,946.90-2,720,920.35-661,279.95

Finding the Fourth Proportional to 1,813,946.90, 2,720,920.35 and 661,279.95

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Solution

The fourth proportional to 1,813,946.90, 2,720,920.35 and 661,279.95 is: 991,919.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813,946.90 : 2,720,920.35 = 661,279.95 : x
  2. Step 2: Convert to fraction form
    1,813,946.90/2,720,920.35 = 661,279.95/x
  3. Step 3: Cross multiply
    1,813,946.90x = 2,720,920.35 × 661,279.95
  4. Step 4: Simplify right side
    1,813,946.90x = 1,799,290,059,397.38
  5. Step 5: Solve for x
    x = 1,799,290,059,397.38/1,813,946.90
  6. Step 6: Final answer
    x = 991,919.92

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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.