Home / 463,966.08-640,581.72-356,343.84

Finding the Fourth Proportional to 463,966.08, 640,581.72 and 356,343.84

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Solution

The fourth proportional to 463,966.08, 640,581.72 and 356,343.84 is: 491,991.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,966.08 : 640,581.72 = 356,343.84 : x
  2. Step 2: Convert to fraction form
    463,966.08/640,581.72 = 356,343.84/x
  3. Step 3: Cross multiply
    463,966.08x = 640,581.72 × 356,343.84
  4. Step 4: Simplify right side
    463,966.08x = 228,267,349,938.61
  5. Step 5: Solve for x
    x = 228,267,349,938.61/463,966.08
  6. Step 6: Final answer
    x = 491,991.46

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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.