Home / 828,403.32-1,240,612.02-472,337.82

Finding the Fourth Proportional to 828,403.32, 1,240,612.02 and 472,337.82

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Solution

The fourth proportional to 828,403.32, 1,240,612.02 and 472,337.82 is: 707,370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,403.32 : 1,240,612.02 = 472,337.82 : x
  2. Step 2: Convert to fraction form
    828,403.32/1,240,612.02 = 472,337.82/x
  3. Step 3: Cross multiply
    828,403.32x = 1,240,612.02 × 472,337.82
  4. Step 4: Simplify right side
    828,403.32x = 585,987,976,992.60
  5. Step 5: Solve for x
    x = 585,987,976,992.60/828,403.32
  6. Step 6: Final answer
    x = 707,370.39

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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.