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Finding the Fourth Proportional to 661,049.92, 912,258.72 and 359,244.16

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Solution

The fourth proportional to 661,049.92, 912,258.72 and 359,244.16 is: 495,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,049.92 : 912,258.72 = 359,244.16 : x
  2. Step 2: Convert to fraction form
    661,049.92/912,258.72 = 359,244.16/x
  3. Step 3: Cross multiply
    661,049.92x = 912,258.72 × 359,244.16
  4. Step 4: Simplify right side
    661,049.92x = 327,723,617,569.08
  5. Step 5: Solve for x
    x = 327,723,617,569.08/661,049.92
  6. Step 6: Final answer
    x = 495,762.28

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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.