Home / 1,209,003.46-1,668,424.75-665,127.57

Finding the Fourth Proportional to 1,209,003.46, 1,668,424.75 and 665,127.57

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Solution

The fourth proportional to 1,209,003.46, 1,668,424.75 and 665,127.57 is: 917,876.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,003.46 : 1,668,424.75 = 665,127.57 : x
  2. Step 2: Convert to fraction form
    1,209,003.46/1,668,424.75 = 665,127.57/x
  3. Step 3: Cross multiply
    1,209,003.46x = 1,668,424.75 × 665,127.57
  4. Step 4: Simplify right side
    1,209,003.46x = 1,109,715,308,030.47
  5. Step 5: Solve for x
    x = 1,109,715,308,030.47/1,209,003.46
  6. Step 6: Final answer
    x = 917,876.04

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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.