Home / 1,098,514.60-1,645,007.10-722,501.80

Finding the Fourth Proportional to 1,098,514.60, 1,645,007.10 and 722,501.80

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Solution

The fourth proportional to 1,098,514.60, 1,645,007.10 and 722,501.80 is: 1,081,934.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,514.60 : 1,645,007.10 = 722,501.80 : x
  2. Step 2: Convert to fraction form
    1,098,514.60/1,645,007.10 = 722,501.80/x
  3. Step 3: Cross multiply
    1,098,514.60x = 1,645,007.10 × 722,501.80
  4. Step 4: Simplify right side
    1,098,514.60x = 1,188,520,590,762.78
  5. Step 5: Solve for x
    x = 1,188,520,590,762.78/1,098,514.60
  6. Step 6: Final answer
    x = 1,081,934.27

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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.