Home / 577,117.09-865,719.12-172,277.32

Finding the Fourth Proportional to 577,117.09, 865,719.12 and 172,277.32

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Solution

The fourth proportional to 577,117.09, 865,719.12 and 172,277.32 is: 258,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,117.09 : 865,719.12 = 172,277.32 : x
  2. Step 2: Convert to fraction form
    577,117.09/865,719.12 = 172,277.32/x
  3. Step 3: Cross multiply
    577,117.09x = 865,719.12 × 172,277.32
  4. Step 4: Simplify right side
    577,117.09x = 149,143,769,866.36
  5. Step 5: Solve for x
    x = 149,143,769,866.36/577,117.09
  6. Step 6: Final answer
    x = 258,428.96

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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.