Home / 1,681,436.80-2,320,438.80-917,532.28

Finding the Fourth Proportional to 1,681,436.80, 2,320,438.80 and 917,532.28

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Solution

The fourth proportional to 1,681,436.80, 2,320,438.80 and 917,532.28 is: 1,266,225.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,436.80 : 2,320,438.80 = 917,532.28 : x
  2. Step 2: Convert to fraction form
    1,681,436.80/2,320,438.80 = 917,532.28/x
  3. Step 3: Cross multiply
    1,681,436.80x = 2,320,438.80 × 917,532.28
  4. Step 4: Simplify right side
    1,681,436.80x = 2,129,077,502,764.46
  5. Step 5: Solve for x
    x = 2,129,077,502,764.46/1,681,436.80
  6. Step 6: Final answer
    x = 1,266,225.11

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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.