Home / 484,110.56-668,060.64-280,133.16

Finding the Fourth Proportional to 484,110.56, 668,060.64 and 280,133.16

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Solution

The fourth proportional to 484,110.56, 668,060.64 and 280,133.16 is: 386,576.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,110.56 : 668,060.64 = 280,133.16 : x
  2. Step 2: Convert to fraction form
    484,110.56/668,060.64 = 280,133.16/x
  3. Step 3: Cross multiply
    484,110.56x = 668,060.64 × 280,133.16
  4. Step 4: Simplify right side
    484,110.56x = 187,145,938,154.82
  5. Step 5: Solve for x
    x = 187,145,938,154.82/484,110.56
  6. Step 6: Final answer
    x = 386,576.86

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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.