Home / 711,449.28-1,067,175.74-290,725.16

Finding the Fourth Proportional to 711,449.28, 1,067,175.74 and 290,725.16

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Solution

The fourth proportional to 711,449.28, 1,067,175.74 and 290,725.16 is: 436,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,449.28 : 1,067,175.74 = 290,725.16 : x
  2. Step 2: Convert to fraction form
    711,449.28/1,067,175.74 = 290,725.16/x
  3. Step 3: Cross multiply
    711,449.28x = 1,067,175.74 × 290,725.16
  4. Step 4: Simplify right side
    711,449.28x = 310,254,833,150.55
  5. Step 5: Solve for x
    x = 310,254,833,150.55/711,449.28
  6. Step 6: Final answer
    x = 436,088.48

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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.