Home / 703,422.07-970,721.10-381,140.89

Finding the Fourth Proportional to 703,422.07, 970,721.10 and 381,140.89

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Solution

The fourth proportional to 703,422.07, 970,721.10 and 381,140.89 is: 525,973.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,422.07 : 970,721.10 = 381,140.89 : x
  2. Step 2: Convert to fraction form
    703,422.07/970,721.10 = 381,140.89/x
  3. Step 3: Cross multiply
    703,422.07x = 970,721.10 × 381,140.89
  4. Step 4: Simplify right side
    703,422.07x = 369,981,503,995.78
  5. Step 5: Solve for x
    x = 369,981,503,995.78/703,422.07
  6. Step 6: Final answer
    x = 525,973.69

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Double scale
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Similar ratio
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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.