Home / 740,002.80-1,110,004.20-687,514.80

Finding the Fourth Proportional to 740,002.80, 1,110,004.20 and 687,514.80

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Solution

The fourth proportional to 740,002.80, 1,110,004.20 and 687,514.80 is: 1,031,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,002.80 : 1,110,004.20 = 687,514.80 : x
  2. Step 2: Convert to fraction form
    740,002.80/1,110,004.20 = 687,514.80/x
  3. Step 3: Cross multiply
    740,002.80x = 1,110,004.20 × 687,514.80
  4. Step 4: Simplify right side
    740,002.80x = 763,144,315,562.16
  5. Step 5: Solve for x
    x = 763,144,315,562.16/740,002.80
  6. Step 6: Final answer
    x = 1,031,272.20

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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.