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Finding the Fourth Proportional to 654,758.65, 903,557.86 and 368,278.93

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Solution

The fourth proportional to 654,758.65, 903,557.86 and 368,278.93 is: 508,219.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,758.65 : 903,557.86 = 368,278.93 : x
  2. Step 2: Convert to fraction form
    654,758.65/903,557.86 = 368,278.93/x
  3. Step 3: Cross multiply
    654,758.65x = 903,557.86 × 368,278.93
  4. Step 4: Simplify right side
    654,758.65x = 332,761,321,873.89
  5. Step 5: Solve for x
    x = 332,761,321,873.89/654,758.65
  6. Step 6: Final answer
    x = 508,219.82

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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.