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Finding the Fourth Proportional to 703,147.68, 970,342.02 and 380,858.58

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Solution

The fourth proportional to 703,147.68, 970,342.02 and 380,858.58 is: 525,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,147.68 : 970,342.02 = 380,858.58 : x
  2. Step 2: Convert to fraction form
    703,147.68/970,342.02 = 380,858.58/x
  3. Step 3: Cross multiply
    703,147.68x = 970,342.02 × 380,858.58
  4. Step 4: Simplify right side
    703,147.68x = 369,563,083,851.53
  5. Step 5: Solve for x
    x = 369,563,083,851.53/703,147.68
  6. Step 6: Final answer
    x = 525,583.88

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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.