Home / 823,287.60-1,234,405.80-349,729.20

Finding the Fourth Proportional to 823,287.60, 1,234,405.80 and 349,729.20

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Solution

The fourth proportional to 823,287.60, 1,234,405.80 and 349,729.20 is: 524,370.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,287.60 : 1,234,405.80 = 349,729.20 : x
  2. Step 2: Convert to fraction form
    823,287.60/1,234,405.80 = 349,729.20/x
  3. Step 3: Cross multiply
    823,287.60x = 1,234,405.80 × 349,729.20
  4. Step 4: Simplify right side
    823,287.60x = 431,707,752,909.36
  5. Step 5: Solve for x
    x = 431,707,752,909.36/823,287.60
  6. Step 6: Final answer
    x = 524,370.53

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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.