Home / 730,857.04-1,008,213.42-489,149.80

Finding the Fourth Proportional to 730,857.04, 1,008,213.42 and 489,149.80

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Solution

The fourth proportional to 730,857.04, 1,008,213.42 and 489,149.80 is: 674,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,857.04 : 1,008,213.42 = 489,149.80 : x
  2. Step 2: Convert to fraction form
    730,857.04/1,008,213.42 = 489,149.80/x
  3. Step 3: Cross multiply
    730,857.04x = 1,008,213.42 × 489,149.80
  4. Step 4: Simplify right side
    730,857.04x = 493,167,392,750.32
  5. Step 5: Solve for x
    x = 493,167,392,750.32/730,857.04
  6. Step 6: Final answer
    x = 674,779.56

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1.5x scale

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.