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Finding the Fourth Proportional to 703,354.96, 970,630.86 and 381,065.06

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Solution

The fourth proportional to 703,354.96, 970,630.86 and 381,065.06 is: 525,870.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,354.96 : 970,630.86 = 381,065.06 : x
  2. Step 2: Convert to fraction form
    703,354.96/970,630.86 = 381,065.06/x
  3. Step 3: Cross multiply
    703,354.96x = 970,630.86 × 381,065.06
  4. Step 4: Simplify right side
    703,354.96x = 369,873,506,903.75
  5. Step 5: Solve for x
    x = 369,873,506,903.75/703,354.96
  6. Step 6: Final answer
    x = 525,870.33

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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.