Home / 728,675.19-1,005,882.66-456,897.90

Finding the Fourth Proportional to 728,675.19, 1,005,882.66 and 456,897.90

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Solution

The fourth proportional to 728,675.19, 1,005,882.66 and 456,897.90 is: 630,714.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,675.19 : 1,005,882.66 = 456,897.90 : x
  2. Step 2: Convert to fraction form
    728,675.19/1,005,882.66 = 456,897.90/x
  3. Step 3: Cross multiply
    728,675.19x = 1,005,882.66 × 456,897.90
  4. Step 4: Simplify right side
    728,675.19x = 459,585,675,000.41
  5. Step 5: Solve for x
    x = 459,585,675,000.41/728,675.19
  6. Step 6: Final answer
    x = 630,714.04

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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.