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Finding the Fourth Proportional to 547,040.39, 754,320.62 and 355,698.95

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Solution

The fourth proportional to 547,040.39, 754,320.62 and 355,698.95 is: 490,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,040.39 : 754,320.62 = 355,698.95 : x
  2. Step 2: Convert to fraction form
    547,040.39/754,320.62 = 355,698.95/x
  3. Step 3: Cross multiply
    547,040.39x = 754,320.62 × 355,698.95
  4. Step 4: Simplify right side
    547,040.39x = 268,311,050,718.85
  5. Step 5: Solve for x
    x = 268,311,050,718.85/547,040.39
  6. Step 6: Final answer
    x = 490,477.59

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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.