Home / 1,681,449.80-2,320,456.74-917,545.28

Finding the Fourth Proportional to 1,681,449.80, 2,320,456.74 and 917,545.28

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Solution

The fourth proportional to 1,681,449.80, 2,320,456.74 and 917,545.28 is: 1,266,243.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,449.80 : 2,320,456.74 = 917,545.28 : x
  2. Step 2: Convert to fraction form
    1,681,449.80/2,320,456.74 = 917,545.28/x
  3. Step 3: Cross multiply
    1,681,449.80x = 2,320,456.74 × 917,545.28
  4. Step 4: Simplify right side
    1,681,449.80x = 2,129,124,129,231.19
  5. Step 5: Solve for x
    x = 2,129,124,129,231.19/1,681,449.80
  6. Step 6: Final answer
    x = 1,266,243.05

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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.