Home / 457,479.12-686,213.69-187,547.03

Finding the Fourth Proportional to 457,479.12, 686,213.69 and 187,547.03

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Solution

The fourth proportional to 457,479.12, 686,213.69 and 187,547.03 is: 281,318.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,479.12 : 686,213.69 = 187,547.03 : x
  2. Step 2: Convert to fraction form
    457,479.12/686,213.69 = 187,547.03/x
  3. Step 3: Cross multiply
    457,479.12x = 686,213.69 × 187,547.03
  4. Step 4: Simplify right side
    457,479.12x = 128,697,335,136.04
  5. Step 5: Solve for x
    x = 128,697,335,136.04/457,479.12
  6. Step 6: Final answer
    x = 281,318.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.