Home / 430,319.66-644,888.97-272,265.17

Finding the Fourth Proportional to 430,319.66, 644,888.97 and 272,265.17

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Solution

The fourth proportional to 430,319.66, 644,888.97 and 272,265.17 is: 408,024.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,319.66 : 644,888.97 = 272,265.17 : x
  2. Step 2: Convert to fraction form
    430,319.66/644,888.97 = 272,265.17/x
  3. Step 3: Cross multiply
    430,319.66x = 644,888.97 × 272,265.17
  4. Step 4: Simplify right side
    430,319.66x = 175,580,805,048.18
  5. Step 5: Solve for x
    x = 175,580,805,048.18/430,319.66
  6. Step 6: Final answer
    x = 408,024.13

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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.