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Finding the Fourth Proportional to 703,011.60, 970,144.02 and 380,719.08

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Solution

The fourth proportional to 703,011.60, 970,144.02 and 380,719.08 is: 525,385.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,011.60 : 970,144.02 = 380,719.08 : x
  2. Step 2: Convert to fraction form
    703,011.60/970,144.02 = 380,719.08/x
  3. Step 3: Cross multiply
    703,011.60x = 970,144.02 × 380,719.08
  4. Step 4: Simplify right side
    703,011.60x = 369,352,338,761.90
  5. Step 5: Solve for x
    x = 369,352,338,761.90/703,011.60
  6. Step 6: Final answer
    x = 525,385.84

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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.