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Finding the Fourth Proportional to 508,572.64, 701,863.08 and 282,218.12

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Solution

The fourth proportional to 508,572.64, 701,863.08 and 282,218.12 is: 389,479.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,572.64 : 701,863.08 = 282,218.12 : x
  2. Step 2: Convert to fraction form
    508,572.64/701,863.08 = 282,218.12/x
  3. Step 3: Cross multiply
    508,572.64x = 701,863.08 × 282,218.12
  4. Step 4: Simplify right side
    508,572.64x = 198,078,478,935.01
  5. Step 5: Solve for x
    x = 198,078,478,935.01/508,572.64
  6. Step 6: Final answer
    x = 389,479.23

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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.