Home / 1,272,155.70-1,908,233.55-1,098,945.30

Finding the Fourth Proportional to 1,272,155.70, 1,908,233.55 and 1,098,945.30

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Solution

The fourth proportional to 1,272,155.70, 1,908,233.55 and 1,098,945.30 is: 1,648,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,155.70 : 1,908,233.55 = 1,098,945.30 : x
  2. Step 2: Convert to fraction form
    1,272,155.70/1,908,233.55 = 1,098,945.30/x
  3. Step 3: Cross multiply
    1,272,155.70x = 1,908,233.55 × 1,098,945.30
  4. Step 4: Simplify right side
    1,272,155.70x = 2,097,044,291,074.82
  5. Step 5: Solve for x
    x = 2,097,044,291,074.82/1,272,155.70
  6. Step 6: Final answer
    x = 1,648,417.95

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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.