Home / 823,946.80-1,236,649.20-486,565.60

Finding the Fourth Proportional to 823,946.80, 1,236,649.20 and 486,565.60

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Solution

The fourth proportional to 823,946.80, 1,236,649.20 and 486,565.60 is: 730,278.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,946.80 : 1,236,649.20 = 486,565.60 : x
  2. Step 2: Convert to fraction form
    823,946.80/1,236,649.20 = 486,565.60/x
  3. Step 3: Cross multiply
    823,946.80x = 1,236,649.20 × 486,565.60
  4. Step 4: Simplify right side
    823,946.80x = 601,710,959,987.52
  5. Step 5: Solve for x
    x = 601,710,959,987.52/823,946.80
  6. Step 6: Final answer
    x = 730,278.90

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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.