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Finding the Fourth Proportional to 703,248.36, 970,478.73 and 380,964.66

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Solution

The fourth proportional to 703,248.36, 970,478.73 and 380,964.66 is: 525,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,248.36 : 970,478.73 = 380,964.66 : x
  2. Step 2: Convert to fraction form
    703,248.36/970,478.73 = 380,964.66/x
  3. Step 3: Cross multiply
    703,248.36x = 970,478.73 × 380,964.66
  4. Step 4: Simplify right side
    703,248.36x = 369,718,099,411.68
  5. Step 5: Solve for x
    x = 369,718,099,411.68/703,248.36
  6. Step 6: Final answer
    x = 525,729.06

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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.