Home / 409,264.25-613,979.60-172,607.76

Finding the Fourth Proportional to 409,264.25, 613,979.60 and 172,607.76

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Solution

The fourth proportional to 409,264.25, 613,979.60 and 172,607.76 is: 258,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,264.25 : 613,979.60 = 172,607.76 : x
  2. Step 2: Convert to fraction form
    409,264.25/613,979.60 = 172,607.76/x
  3. Step 3: Cross multiply
    409,264.25x = 613,979.60 × 172,607.76
  4. Step 4: Simplify right side
    409,264.25x = 105,977,642,578.66
  5. Step 5: Solve for x
    x = 105,977,642,578.66/409,264.25
  6. Step 6: Final answer
    x = 258,946.74

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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.