Home / 1,209,959.69-1,669,693.23-658,663.92

Finding the Fourth Proportional to 1,209,959.69, 1,669,693.23 and 658,663.92

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Solution

The fourth proportional to 1,209,959.69, 1,669,693.23 and 658,663.92 is: 908,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,959.69 : 1,669,693.23 = 658,663.92 : x
  2. Step 2: Convert to fraction form
    1,209,959.69/1,669,693.23 = 658,663.92/x
  3. Step 3: Cross multiply
    1,209,959.69x = 1,669,693.23 × 658,663.92
  4. Step 4: Simplify right side
    1,209,959.69x = 1,099,766,691,420.16
  5. Step 5: Solve for x
    x = 1,099,766,691,420.16/1,209,959.69
  6. Step 6: Final answer
    x = 908,928.37

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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.