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Finding the Fourth Proportional to 703,154.93, 970,353.83 and 380,865.14

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Solution

The fourth proportional to 703,154.93, 970,353.83 and 380,865.14 is: 525,593.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,154.93 : 970,353.83 = 380,865.14 : x
  2. Step 2: Convert to fraction form
    703,154.93/970,353.83 = 380,865.14/x
  3. Step 3: Cross multiply
    703,154.93x = 970,353.83 × 380,865.14
  4. Step 4: Simplify right side
    703,154.93x = 369,573,944,909.34
  5. Step 5: Solve for x
    x = 369,573,944,909.34/703,154.93
  6. Step 6: Final answer
    x = 525,593.91

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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.