Home / 484,126.72-668,048.07-280,136.95

Finding the Fourth Proportional to 484,126.72, 668,048.07 and 280,136.95

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Solution

The fourth proportional to 484,126.72, 668,048.07 and 280,136.95 is: 386,561.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,126.72 : 668,048.07 = 280,136.95 : x
  2. Step 2: Convert to fraction form
    484,126.72/668,048.07 = 280,136.95/x
  3. Step 3: Cross multiply
    484,126.72x = 668,048.07 × 280,136.95
  4. Step 4: Simplify right side
    484,126.72x = 187,144,948,783.19
  5. Step 5: Solve for x
    x = 187,144,948,783.19/484,126.72
  6. Step 6: Final answer
    x = 386,561.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.