Home / 779,743.10-1,170,003.45-443,042.30

Finding the Fourth Proportional to 779,743.10, 1,170,003.45 and 443,042.30

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Solution

The fourth proportional to 779,743.10, 1,170,003.45 and 443,042.30 is: 664,784.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,743.10 : 1,170,003.45 = 443,042.30 : x
  2. Step 2: Convert to fraction form
    779,743.10/1,170,003.45 = 443,042.30/x
  3. Step 3: Cross multiply
    779,743.10x = 1,170,003.45 × 443,042.30
  4. Step 4: Simplify right side
    779,743.10x = 518,361,019,495.94
  5. Step 5: Solve for x
    x = 518,361,019,495.94/779,743.10
  6. Step 6: Final answer
    x = 664,784.36

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1.5x scale

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.