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Finding the Fourth Proportional to 907,212, 1,251,952.68 and 493,750.32

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Solution

The fourth proportional to 907,212, 1,251,952.68 and 493,750.32 is: 681,375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,212 : 1,251,952.68 = 493,750.32 : x
  2. Step 2: Convert to fraction form
    907,212/1,251,952.68 = 493,750.32/x
  3. Step 3: Cross multiply
    907,212x = 1,251,952.68 × 493,750.32
  4. Step 4: Simplify right side
    907,212x = 618,152,036,374.86
  5. Step 5: Solve for x
    x = 618,152,036,374.86/907,212
  6. Step 6: Final answer
    x = 681,375.51

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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.