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Finding the Fourth Proportional to 631,195.50, 870,934.35 and 359,247.33

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Solution

The fourth proportional to 631,195.50, 870,934.35 and 359,247.33 is: 495,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,195.50 : 870,934.35 = 359,247.33 : x
  2. Step 2: Convert to fraction form
    631,195.50/870,934.35 = 359,247.33/x
  3. Step 3: Cross multiply
    631,195.50x = 870,934.35 × 359,247.33
  4. Step 4: Simplify right side
    631,195.50x = 312,880,839,842.79
  5. Step 5: Solve for x
    x = 312,880,839,842.79/631,195.50
  6. Step 6: Final answer
    x = 495,695.61

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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.