Home / 508,828.80-763,329.60-272,107.20

Finding the Fourth Proportional to 508,828.80, 763,329.60 and 272,107.20

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Solution

The fourth proportional to 508,828.80, 763,329.60 and 272,107.20 is: 408,207.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,828.80 : 763,329.60 = 272,107.20 : x
  2. Step 2: Convert to fraction form
    508,828.80/763,329.60 = 272,107.20/x
  3. Step 3: Cross multiply
    508,828.80x = 763,329.60 × 272,107.20
  4. Step 4: Simplify right side
    508,828.80x = 207,707,480,133.12
  5. Step 5: Solve for x
    x = 207,707,480,133.12/508,828.80
  6. Step 6: Final answer
    x = 408,207.00

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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.