Home / 465,384.24-642,213.40-284,399.12

Finding the Fourth Proportional to 465,384.24, 642,213.40 and 284,399.12

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Solution

The fourth proportional to 465,384.24, 642,213.40 and 284,399.12 is: 392,460.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,384.24 : 642,213.40 = 284,399.12 : x
  2. Step 2: Convert to fraction form
    465,384.24/642,213.40 = 284,399.12/x
  3. Step 3: Cross multiply
    465,384.24x = 642,213.40 × 284,399.12
  4. Step 4: Simplify right side
    465,384.24x = 182,644,925,812.21
  5. Step 5: Solve for x
    x = 182,644,925,812.21/465,384.24
  6. Step 6: Final answer
    x = 392,460.49

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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.