Home / 725,448.04-1,088,356.38-426,181.64

Finding the Fourth Proportional to 725,448.04, 1,088,356.38 and 426,181.64

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Solution

The fourth proportional to 725,448.04, 1,088,356.38 and 426,181.64 is: 639,380.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,448.04 : 1,088,356.38 = 426,181.64 : x
  2. Step 2: Convert to fraction form
    725,448.04/1,088,356.38 = 426,181.64/x
  3. Step 3: Cross multiply
    725,448.04x = 1,088,356.38 × 426,181.64
  4. Step 4: Simplify right side
    725,448.04x = 463,837,506,932.86
  5. Step 5: Solve for x
    x = 463,837,506,932.86/725,448.04
  6. Step 6: Final answer
    x = 639,380.74

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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.