Home / 711,211.20-1,066,816.80-312,043.20

Finding the Fourth Proportional to 711,211.20, 1,066,816.80 and 312,043.20

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Solution

The fourth proportional to 711,211.20, 1,066,816.80 and 312,043.20 is: 468,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,211.20 : 1,066,816.80 = 312,043.20 : x
  2. Step 2: Convert to fraction form
    711,211.20/1,066,816.80 = 312,043.20/x
  3. Step 3: Cross multiply
    711,211.20x = 1,066,816.80 × 312,043.20
  4. Step 4: Simplify right side
    711,211.20x = 332,892,928,085.76
  5. Step 5: Solve for x
    x = 332,892,928,085.76/711,211.20
  6. Step 6: Final answer
    x = 468,064.80

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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.