Home / 484,118.93-668,037.38-280,129.25

Finding the Fourth Proportional to 484,118.93, 668,037.38 and 280,129.25

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Solution

The fourth proportional to 484,118.93, 668,037.38 and 280,129.25 is: 386,551.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,118.93 : 668,037.38 = 280,129.25 : x
  2. Step 2: Convert to fraction form
    484,118.93/668,037.38 = 280,129.25/x
  3. Step 3: Cross multiply
    484,118.93x = 668,037.38 × 280,129.25
  4. Step 4: Simplify right side
    484,118.93x = 187,136,805,490.53
  5. Step 5: Solve for x
    x = 187,136,805,490.53/484,118.93
  6. Step 6: Final answer
    x = 386,551.31

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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.