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Finding the Fourth Proportional to 703,015.60, 970,149.54 and 380,723.08

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Solution

The fourth proportional to 703,015.60, 970,149.54 and 380,723.08 is: 525,391.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,015.60 : 970,149.54 = 380,723.08 : x
  2. Step 2: Convert to fraction form
    703,015.60/970,149.54 = 380,723.08/x
  3. Step 3: Cross multiply
    703,015.60x = 970,149.54 × 380,723.08
  4. Step 4: Simplify right side
    703,015.60x = 369,358,320,929.38
  5. Step 5: Solve for x
    x = 369,358,320,929.38/703,015.60
  6. Step 6: Final answer
    x = 525,391.36

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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.