Home / 1,290,935.45-1,781,554.01-717,963.32

Finding the Fourth Proportional to 1,290,935.45, 1,781,554.01 and 717,963.32

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Solution

The fourth proportional to 1,290,935.45, 1,781,554.01 and 717,963.32 is: 990,824.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,935.45 : 1,781,554.01 = 717,963.32 : x
  2. Step 2: Convert to fraction form
    1,290,935.45/1,781,554.01 = 717,963.32/x
  3. Step 3: Cross multiply
    1,290,935.45x = 1,781,554.01 × 717,963.32
  4. Step 4: Simplify right side
    1,290,935.45x = 1,279,090,419,281.33
  5. Step 5: Solve for x
    x = 1,279,090,419,281.33/1,290,935.45
  6. Step 6: Final answer
    x = 990,824.46

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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.