Home / 1,385,535.90-2,077,785.45-486,630.30

Finding the Fourth Proportional to 1,385,535.90, 2,077,785.45 and 486,630.30

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Solution

The fourth proportional to 1,385,535.90, 2,077,785.45 and 486,630.30 is: 729,763.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,535.90 : 2,077,785.45 = 486,630.30 : x
  2. Step 2: Convert to fraction form
    1,385,535.90/2,077,785.45 = 486,630.30/x
  3. Step 3: Cross multiply
    1,385,535.90x = 2,077,785.45 × 486,630.30
  4. Step 4: Simplify right side
    1,385,535.90x = 1,011,113,356,869.14
  5. Step 5: Solve for x
    x = 1,011,113,356,869.14/1,385,535.90
  6. Step 6: Final answer
    x = 729,763.38

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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.