Home / 1,281,581.40-1,922,663.70-748,828.20

Finding the Fourth Proportional to 1,281,581.40, 1,922,663.70 and 748,828.20

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Solution

The fourth proportional to 1,281,581.40, 1,922,663.70 and 748,828.20 is: 1,123,412.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,581.40 : 1,922,663.70 = 748,828.20 : x
  2. Step 2: Convert to fraction form
    1,281,581.40/1,922,663.70 = 748,828.20/x
  3. Step 3: Cross multiply
    1,281,581.40x = 1,922,663.70 × 748,828.20
  4. Step 4: Simplify right side
    1,281,581.40x = 1,439,744,797,676.34
  5. Step 5: Solve for x
    x = 1,439,744,797,676.34/1,281,581.40
  6. Step 6: Final answer
    x = 1,123,412.68

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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.