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Finding the Fourth Proportional to 657,585.60, 986,086.80 and 302,708.40

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Solution

The fourth proportional to 657,585.60, 986,086.80 and 302,708.40 is: 453,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,585.60 : 986,086.80 = 302,708.40 : x
  2. Step 2: Convert to fraction form
    657,585.60/986,086.80 = 302,708.40/x
  3. Step 3: Cross multiply
    657,585.60x = 986,086.80 × 302,708.40
  4. Step 4: Simplify right side
    657,585.60x = 298,496,757,489.12
  5. Step 5: Solve for x
    x = 298,496,757,489.12/657,585.60
  6. Step 6: Final answer
    x = 453,928.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.