Home / 1,098,566.74-1,515,776.90-663,054.74

Finding the Fourth Proportional to 1,098,566.74, 1,515,776.90 and 663,054.74

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Solution

The fourth proportional to 1,098,566.74, 1,515,776.90 and 663,054.74 is: 914,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,566.74 : 1,515,776.90 = 663,054.74 : x
  2. Step 2: Convert to fraction form
    1,098,566.74/1,515,776.90 = 663,054.74/x
  3. Step 3: Cross multiply
    1,098,566.74x = 1,515,776.90 × 663,054.74
  4. Step 4: Simplify right side
    1,098,566.74x = 1,005,043,058,327.51
  5. Step 5: Solve for x
    x = 1,005,043,058,327.51/1,098,566.74
  6. Step 6: Final answer
    x = 914,867.55

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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.