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Finding the Fourth Proportional to 487,441.95, 672,657.28 and 269,644.93

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Solution

The fourth proportional to 487,441.95, 672,657.28 and 269,644.93 is: 372,103.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,441.95 : 672,657.28 = 269,644.93 : x
  2. Step 2: Convert to fraction form
    487,441.95/672,657.28 = 269,644.93/x
  3. Step 3: Cross multiply
    487,441.95x = 672,657.28 × 269,644.93
  4. Step 4: Simplify right side
    487,441.95x = 181,378,625,179.59
  5. Step 5: Solve for x
    x = 181,378,625,179.59/487,441.95
  6. Step 6: Final answer
    x = 372,103.03

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1.5x scale

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.