Home / 499,167.28-688,849.64-272,814.40

Finding the Fourth Proportional to 499,167.28, 688,849.64 and 272,814.40

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Solution

The fourth proportional to 499,167.28, 688,849.64 and 272,814.40 is: 376,483.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,167.28 : 688,849.64 = 272,814.40 : x
  2. Step 2: Convert to fraction form
    499,167.28/688,849.64 = 272,814.40/x
  3. Step 3: Cross multiply
    499,167.28x = 688,849.64 × 272,814.40
  4. Step 4: Simplify right side
    499,167.28x = 187,928,101,226.82
  5. Step 5: Solve for x
    x = 187,928,101,226.82/499,167.28
  6. Step 6: Final answer
    x = 376,483.21

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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.