Home / 742,136.66-1,024,150.50-402,604.88

Finding the Fourth Proportional to 742,136.66, 1,024,150.50 and 402,604.88

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Solution

The fourth proportional to 742,136.66, 1,024,150.50 and 402,604.88 is: 555,595.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,136.66 : 1,024,150.50 = 402,604.88 : x
  2. Step 2: Convert to fraction form
    742,136.66/1,024,150.50 = 402,604.88/x
  3. Step 3: Cross multiply
    742,136.66x = 1,024,150.50 × 402,604.88
  4. Step 4: Simplify right side
    742,136.66x = 412,327,989,154.44
  5. Step 5: Solve for x
    x = 412,327,989,154.44/742,136.66
  6. Step 6: Final answer
    x = 555,595.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.