Home / 1,385,444.40-2,077,648.20-486,538.80

Finding the Fourth Proportional to 1,385,444.40, 2,077,648.20 and 486,538.80

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Solution

The fourth proportional to 1,385,444.40, 2,077,648.20 and 486,538.80 is: 729,626.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,444.40 : 2,077,648.20 = 486,538.80 : x
  2. Step 2: Convert to fraction form
    1,385,444.40/2,077,648.20 = 486,538.80/x
  3. Step 3: Cross multiply
    1,385,444.40x = 2,077,648.20 × 486,538.80
  4. Step 4: Simplify right side
    1,385,444.40x = 1,010,856,462,050.16
  5. Step 5: Solve for x
    x = 1,010,856,462,050.16/1,385,444.40
  6. Step 6: Final answer
    x = 729,626.15

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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.