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Finding the Fourth Proportional to 703,613.07, 970,989.48 and 381,323.15

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Solution

The fourth proportional to 703,613.07, 970,989.48 and 381,323.15 is: 526,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,613.07 : 970,989.48 = 381,323.15 : x
  2. Step 2: Convert to fraction form
    703,613.07/970,989.48 = 381,323.15/x
  3. Step 3: Cross multiply
    703,613.07x = 970,989.48 × 381,323.15
  4. Step 4: Simplify right side
    703,613.07x = 370,260,767,130.46
  5. Step 5: Solve for x
    x = 370,260,767,130.46/703,613.07
  6. Step 6: Final answer
    x = 526,227.81

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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.