Home / 1,418,123.70-2,125,411.65-708,349.86

Finding the Fourth Proportional to 1,418,123.70, 2,125,411.65 and 708,349.86

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Solution

The fourth proportional to 1,418,123.70, 2,125,411.65 and 708,349.86 is: 1,061,638.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,123.70 : 2,125,411.65 = 708,349.86 : x
  2. Step 2: Convert to fraction form
    1,418,123.70/2,125,411.65 = 708,349.86/x
  3. Step 3: Cross multiply
    1,418,123.70x = 2,125,411.65 × 708,349.86
  4. Step 4: Simplify right side
    1,418,123.70x = 1,505,535,044,719.87
  5. Step 5: Solve for x
    x = 1,505,535,044,719.87/1,418,123.70
  6. Step 6: Final answer
    x = 1,061,638.73

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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.