Home / 711,641.60-1,068,067.20-291,219.20

Finding the Fourth Proportional to 711,641.60, 1,068,067.20 and 291,219.20

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Solution

The fourth proportional to 711,641.60, 1,068,067.20 and 291,219.20 is: 437,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,641.60 : 1,068,067.20 = 291,219.20 : x
  2. Step 2: Convert to fraction form
    711,641.60/1,068,067.20 = 291,219.20/x
  3. Step 3: Cross multiply
    711,641.60x = 1,068,067.20 × 291,219.20
  4. Step 4: Simplify right side
    711,641.60x = 311,041,675,530.24
  5. Step 5: Solve for x
    x = 311,041,675,530.24/711,641.60
  6. Step 6: Final answer
    x = 437,076.30

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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.