Home / 908,739.22-1,254,008.96-500,839.80

Finding the Fourth Proportional to 908,739.22, 1,254,008.96 and 500,839.80

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Solution

The fourth proportional to 908,739.22, 1,254,008.96 and 500,839.80 is: 691,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,739.22 : 1,254,008.96 = 500,839.80 : x
  2. Step 2: Convert to fraction form
    908,739.22/1,254,008.96 = 500,839.80/x
  3. Step 3: Cross multiply
    908,739.22x = 1,254,008.96 × 500,839.80
  4. Step 4: Simplify right side
    908,739.22x = 628,057,596,724.61
  5. Step 5: Solve for x
    x = 628,057,596,724.61/908,739.22
  6. Step 6: Final answer
    x = 691,130.73

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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.