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Finding the Fourth Proportional to 703,308.61, 970,564.71 and 381,026.89

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Solution

The fourth proportional to 703,308.61, 970,564.71 and 381,026.89 is: 525,816.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,308.61 : 970,564.71 = 381,026.89 : x
  2. Step 2: Convert to fraction form
    703,308.61/970,564.71 = 381,026.89/x
  3. Step 3: Cross multiply
    703,308.61x = 970,564.71 × 381,026.89
  4. Step 4: Simplify right side
    703,308.61x = 369,811,252,995.05
  5. Step 5: Solve for x
    x = 369,811,252,995.05/703,308.61
  6. Step 6: Final answer
    x = 525,816.47

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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.