Home / 1,572,123.60-2,356,144.20-728,881.20

Finding the Fourth Proportional to 1,572,123.60, 2,356,144.20 and 728,881.20

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Solution

The fourth proportional to 1,572,123.60, 2,356,144.20 and 728,881.20 is: 1,092,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,123.60 : 2,356,144.20 = 728,881.20 : x
  2. Step 2: Convert to fraction form
    1,572,123.60/2,356,144.20 = 728,881.20/x
  3. Step 3: Cross multiply
    1,572,123.60x = 2,356,144.20 × 728,881.20
  4. Step 4: Simplify right side
    1,572,123.60x = 1,717,349,211,869.04
  5. Step 5: Solve for x
    x = 1,717,349,211,869.04/1,572,123.60
  6. Step 6: Final answer
    x = 1,092,375.44

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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.