Home / 1,092,143.10-1,638,214.65-977,981.70

Finding the Fourth Proportional to 1,092,143.10, 1,638,214.65 and 977,981.70

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Solution

The fourth proportional to 1,092,143.10, 1,638,214.65 and 977,981.70 is: 1,466,972.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,143.10 : 1,638,214.65 = 977,981.70 : x
  2. Step 2: Convert to fraction form
    1,092,143.10/1,638,214.65 = 977,981.70/x
  3. Step 3: Cross multiply
    1,092,143.10x = 1,638,214.65 × 977,981.70
  4. Step 4: Simplify right side
    1,092,143.10x = 1,602,143,948,371.90
  5. Step 5: Solve for x
    x = 1,602,143,948,371.90/1,092,143.10
  6. Step 6: Final answer
    x = 1,466,972.55

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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.