Home / 1,341,320.70-2,011,981.05-916,167.90

Finding the Fourth Proportional to 1,341,320.70, 2,011,981.05 and 916,167.90

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Solution

The fourth proportional to 1,341,320.70, 2,011,981.05 and 916,167.90 is: 1,374,251.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,320.70 : 2,011,981.05 = 916,167.90 : x
  2. Step 2: Convert to fraction form
    1,341,320.70/2,011,981.05 = 916,167.90/x
  3. Step 3: Cross multiply
    1,341,320.70x = 2,011,981.05 × 916,167.90
  4. Step 4: Simplify right side
    1,341,320.70x = 1,843,312,453,418.30
  5. Step 5: Solve for x
    x = 1,843,312,453,418.30/1,341,320.70
  6. Step 6: Final answer
    x = 1,374,251.85

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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.