Home / 499,173.28-688,857.92-272,820.40

Finding the Fourth Proportional to 499,173.28, 688,857.92 and 272,820.40

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Solution

The fourth proportional to 499,173.28, 688,857.92 and 272,820.40 is: 376,491.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,173.28 : 688,857.92 = 272,820.40 : x
  2. Step 2: Convert to fraction form
    499,173.28/688,857.92 = 272,820.40/x
  3. Step 3: Cross multiply
    499,173.28x = 688,857.92 × 272,820.40
  4. Step 4: Simplify right side
    499,173.28x = 187,934,493,277.57
  5. Step 5: Solve for x
    x = 187,934,493,277.57/499,173.28
  6. Step 6: Final answer
    x = 376,491.49

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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.