Home / 1,026,540.88-1,538,479.65-457,111.72

Finding the Fourth Proportional to 1,026,540.88, 1,538,479.65 and 457,111.72

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Solution

The fourth proportional to 1,026,540.88, 1,538,479.65 and 457,111.72 is: 685,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,540.88 : 1,538,479.65 = 457,111.72 : x
  2. Step 2: Convert to fraction form
    1,026,540.88/1,538,479.65 = 457,111.72/x
  3. Step 3: Cross multiply
    1,026,540.88x = 1,538,479.65 × 457,111.72
  4. Step 4: Simplify right side
    1,026,540.88x = 703,257,078,996.50
  5. Step 5: Solve for x
    x = 703,257,078,996.50/1,026,540.88
  6. Step 6: Final answer
    x = 685,074.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.