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Finding the Fourth Proportional to 723,779.80, 998,796.82 and 417,845.86

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Solution

The fourth proportional to 723,779.80, 998,796.82 and 417,845.86 is: 576,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,779.80 : 998,796.82 = 417,845.86 : x
  2. Step 2: Convert to fraction form
    723,779.80/998,796.82 = 417,845.86/x
  3. Step 3: Cross multiply
    723,779.80x = 998,796.82 × 417,845.86
  4. Step 4: Simplify right side
    723,779.80x = 417,343,116,218.17
  5. Step 5: Solve for x
    x = 417,343,116,218.17/723,779.80
  6. Step 6: Final answer
    x = 576,616.14

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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.