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Finding the Fourth Proportional to 703,312.62, 970,570.22 and 381,030.90

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Solution

The fourth proportional to 703,312.62, 970,570.22 and 381,030.90 is: 525,821.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,312.62 : 970,570.22 = 381,030.90 : x
  2. Step 2: Convert to fraction form
    703,312.62/970,570.22 = 381,030.90/x
  3. Step 3: Cross multiply
    703,312.62x = 970,570.22 × 381,030.90
  4. Step 4: Simplify right side
    703,312.62x = 369,817,244,439.80
  5. Step 5: Solve for x
    x = 369,817,244,439.80/703,312.62
  6. Step 6: Final answer
    x = 525,821.99

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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.