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Finding the Fourth Proportional to 723,780.90, 998,714.20 and 433,322.87

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Solution

The fourth proportional to 723,780.90, 998,714.20 and 433,322.87 is: 597,923.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,780.90 : 998,714.20 = 433,322.87 : x
  2. Step 2: Convert to fraction form
    723,780.90/998,714.20 = 433,322.87/x
  3. Step 3: Cross multiply
    723,780.90x = 998,714.20 × 433,322.87
  4. Step 4: Simplify right side
    723,780.90x = 432,765,703,453.75
  5. Step 5: Solve for x
    x = 432,765,703,453.75/723,780.90
  6. Step 6: Final answer
    x = 597,923.63

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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.