Home / 729,876.86-1,007,238.53-403,183.11

Finding the Fourth Proportional to 729,876.86, 1,007,238.53 and 403,183.11

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Solution

The fourth proportional to 729,876.86, 1,007,238.53 and 403,183.11 is: 556,397.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,876.86 : 1,007,238.53 = 403,183.11 : x
  2. Step 2: Convert to fraction form
    729,876.86/1,007,238.53 = 403,183.11/x
  3. Step 3: Cross multiply
    729,876.86x = 1,007,238.53 × 403,183.11
  4. Step 4: Simplify right side
    729,876.86x = 406,101,559,888.71
  5. Step 5: Solve for x
    x = 406,101,559,888.71/729,876.86
  6. Step 6: Final answer
    x = 556,397.36

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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.