Home / 1,291,575.20-1,937,532.08-426,722.80

Finding the Fourth Proportional to 1,291,575.20, 1,937,532.08 and 426,722.80

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Solution

The fourth proportional to 1,291,575.20, 1,937,532.08 and 426,722.80 is: 640,140.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,575.20 : 1,937,532.08 = 426,722.80 : x
  2. Step 2: Convert to fraction form
    1,291,575.20/1,937,532.08 = 426,722.80/x
  3. Step 3: Cross multiply
    1,291,575.20x = 1,937,532.08 × 426,722.80
  4. Step 4: Simplify right side
    1,291,575.20x = 826,789,114,267.42
  5. Step 5: Solve for x
    x = 826,789,114,267.42/1,291,575.20
  6. Step 6: Final answer
    x = 640,140.13

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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.