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Finding the Fourth Proportional to 408,957.60, 564,259.08 and 245,641.56

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Solution

The fourth proportional to 408,957.60, 564,259.08 and 245,641.56 is: 338,923.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,957.60 : 564,259.08 = 245,641.56 : x
  2. Step 2: Convert to fraction form
    408,957.60/564,259.08 = 245,641.56/x
  3. Step 3: Cross multiply
    408,957.60x = 564,259.08 × 245,641.56
  4. Step 4: Simplify right side
    408,957.60x = 138,605,480,655.37
  5. Step 5: Solve for x
    x = 138,605,480,655.37/408,957.60
  6. Step 6: Final answer
    x = 338,923.84

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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.