Home / 711,445.32-1,067,169.78-290,721.24

Finding the Fourth Proportional to 711,445.32, 1,067,169.78 and 290,721.24

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Solution

The fourth proportional to 711,445.32, 1,067,169.78 and 290,721.24 is: 436,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,445.32 : 1,067,169.78 = 290,721.24 : x
  2. Step 2: Convert to fraction form
    711,445.32/1,067,169.78 = 290,721.24/x
  3. Step 3: Cross multiply
    711,445.32x = 1,067,169.78 × 290,721.24
  4. Step 4: Simplify right side
    711,445.32x = 310,248,921,732.13
  5. Step 5: Solve for x
    x = 310,248,921,732.13/711,445.32
  6. Step 6: Final answer
    x = 436,082.60

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1.5x scale

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.