Home / 1,281,317.40-1,922,267.70-748,564.20

Finding the Fourth Proportional to 1,281,317.40, 1,922,267.70 and 748,564.20

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Solution

The fourth proportional to 1,281,317.40, 1,922,267.70 and 748,564.20 is: 1,123,016.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,317.40 : 1,922,267.70 = 748,564.20 : x
  2. Step 2: Convert to fraction form
    1,281,317.40/1,922,267.70 = 748,564.20/x
  3. Step 3: Cross multiply
    1,281,317.40x = 1,922,267.70 × 748,564.20
  4. Step 4: Simplify right side
    1,281,317.40x = 1,438,940,783,036.34
  5. Step 5: Solve for x
    x = 1,438,940,783,036.34/1,281,317.40
  6. Step 6: Final answer
    x = 1,123,016.66

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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.