Home / 1,231,478.07-1,699,468.61-687,595.47

Finding the Fourth Proportional to 1,231,478.07, 1,699,468.61 and 687,595.47

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Solution

The fourth proportional to 1,231,478.07, 1,699,468.61 and 687,595.47 is: 948,897.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,478.07 : 1,699,468.61 = 687,595.47 : x
  2. Step 2: Convert to fraction form
    1,231,478.07/1,699,468.61 = 687,595.47/x
  3. Step 3: Cross multiply
    1,231,478.07x = 1,699,468.61 × 687,595.47
  4. Step 4: Simplify right side
    1,231,478.07x = 1,168,546,914,205.22
  5. Step 5: Solve for x
    x = 1,168,546,914,205.22/1,231,478.07
  6. Step 6: Final answer
    x = 948,897.87

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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.