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Finding the Fourth Proportional to 649,615.75, 896,475.52 and 359,246.85

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Solution

The fourth proportional to 649,615.75, 896,475.52 and 359,246.85 is: 495,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,615.75 : 896,475.52 = 359,246.85 : x
  2. Step 2: Convert to fraction form
    649,615.75/896,475.52 = 359,246.85/x
  3. Step 3: Cross multiply
    649,615.75x = 896,475.52 × 359,246.85
  4. Step 4: Simplify right side
    649,615.75x = 322,056,003,749.39
  5. Step 5: Solve for x
    x = 322,056,003,749.39/649,615.75
  6. Step 6: Final answer
    x = 495,763.85

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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.