Home / 442,926.60-664,389.90-440,302.20

Finding the Fourth Proportional to 442,926.60, 664,389.90 and 440,302.20

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Solution

The fourth proportional to 442,926.60, 664,389.90 and 440,302.20 is: 660,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,926.60 : 664,389.90 = 440,302.20 : x
  2. Step 2: Convert to fraction form
    442,926.60/664,389.90 = 440,302.20/x
  3. Step 3: Cross multiply
    442,926.60x = 664,389.90 × 440,302.20
  4. Step 4: Simplify right side
    442,926.60x = 292,532,334,627.78
  5. Step 5: Solve for x
    x = 292,532,334,627.78/442,926.60
  6. Step 6: Final answer
    x = 660,453.30

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1.5x scale

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.