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Finding the Fourth Proportional to 703,432.35, 970,737.51 and 381,142.36

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Solution

The fourth proportional to 703,432.35, 970,737.51 and 381,142.36 is: 525,976.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,432.35 : 970,737.51 = 381,142.36 : x
  2. Step 2: Convert to fraction form
    703,432.35/970,737.51 = 381,142.36/x
  3. Step 3: Cross multiply
    703,432.35x = 970,737.51 × 381,142.36
  4. Step 4: Simplify right side
    703,432.35x = 369,989,188,144.63
  5. Step 5: Solve for x
    x = 369,989,188,144.63/703,432.35
  6. Step 6: Final answer
    x = 525,976.93

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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.