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Finding the Fourth Proportional to 703,445.61, 970,755.81 and 381,155.46

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Solution

The fourth proportional to 703,445.61, 970,755.81 and 381,155.46 is: 525,995.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,445.61 : 970,755.81 = 381,155.46 : x
  2. Step 2: Convert to fraction form
    703,445.61/970,755.81 = 381,155.46/x
  3. Step 3: Cross multiply
    703,445.61x = 970,755.81 × 381,155.46
  4. Step 4: Simplify right side
    703,445.61x = 370,008,872,238.56
  5. Step 5: Solve for x
    x = 370,008,872,238.56/703,445.61
  6. Step 6: Final answer
    x = 525,995.00

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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.