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Finding the Fourth Proportional to 661,071.24, 912,278.70 and 359,265.24

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Solution

The fourth proportional to 661,071.24, 912,278.70 and 359,265.24 is: 495,786.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,071.24 : 912,278.70 = 359,265.24 : x
  2. Step 2: Convert to fraction form
    661,071.24/912,278.70 = 359,265.24/x
  3. Step 3: Cross multiply
    661,071.24x = 912,278.70 × 359,265.24
  4. Step 4: Simplify right side
    661,071.24x = 327,750,026,102.39
  5. Step 5: Solve for x
    x = 327,750,026,102.39/661,071.24
  6. Step 6: Final answer
    x = 495,786.24

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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.