Home / 739,967.20-1,109,464.80-290,417.20

Finding the Fourth Proportional to 739,967.20, 1,109,464.80 and 290,417.20

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Solution

The fourth proportional to 739,967.20, 1,109,464.80 and 290,417.20 is: 435,435.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,967.20 : 1,109,464.80 = 290,417.20 : x
  2. Step 2: Convert to fraction form
    739,967.20/1,109,464.80 = 290,417.20/x
  3. Step 3: Cross multiply
    739,967.20x = 1,109,464.80 × 290,417.20
  4. Step 4: Simplify right side
    739,967.20x = 322,207,660,714.56
  5. Step 5: Solve for x
    x = 322,207,660,714.56/739,967.20
  6. Step 6: Final answer
    x = 435,435.06

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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.