Home / 711,881.20-1,067,821.80-291,458.80

Finding the Fourth Proportional to 711,881.20, 1,067,821.80 and 291,458.80

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Solution

The fourth proportional to 711,881.20, 1,067,821.80 and 291,458.80 is: 437,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,881.20 : 1,067,821.80 = 291,458.80 : x
  2. Step 2: Convert to fraction form
    711,881.20/1,067,821.80 = 291,458.80/x
  3. Step 3: Cross multiply
    711,881.20x = 1,067,821.80 × 291,458.80
  4. Step 4: Simplify right side
    711,881.20x = 311,226,060,441.84
  5. Step 5: Solve for x
    x = 311,226,060,441.84/711,881.20
  6. Step 6: Final answer
    x = 437,188.20

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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.