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Finding the Fourth Proportional to 703,427.29, 970,726.28 and 381,137.33

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Solution

The fourth proportional to 703,427.29, 970,726.28 and 381,137.33 is: 525,967.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,427.29 : 970,726.28 = 381,137.33 : x
  2. Step 2: Convert to fraction form
    703,427.29/970,726.28 = 381,137.33/x
  3. Step 3: Cross multiply
    703,427.29x = 970,726.28 × 381,137.33
  4. Step 4: Simplify right side
    703,427.29x = 369,980,023,041.16
  5. Step 5: Solve for x
    x = 369,980,023,041.16/703,427.29
  6. Step 6: Final answer
    x = 525,967.69

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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.