Home / 1,419,223.40-2,129,439.90-745,821.80

Finding the Fourth Proportional to 1,419,223.40, 2,129,439.90 and 745,821.80

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Solution

The fourth proportional to 1,419,223.40, 2,129,439.90 and 745,821.80 is: 1,119,050.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,223.40 : 2,129,439.90 = 745,821.80 : x
  2. Step 2: Convert to fraction form
    1,419,223.40/2,129,439.90 = 745,821.80/x
  3. Step 3: Cross multiply
    1,419,223.40x = 2,129,439.90 × 745,821.80
  4. Step 4: Simplify right side
    1,419,223.40x = 1,588,182,699,209.82
  5. Step 5: Solve for x
    x = 1,588,182,699,209.82/1,419,223.40
  6. Step 6: Final answer
    x = 1,119,050.53

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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.