Home / 724,300.70-1,086,445.65-218,860.70

Finding the Fourth Proportional to 724,300.70, 1,086,445.65 and 218,860.70

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Solution

The fourth proportional to 724,300.70, 1,086,445.65 and 218,860.70 is: 328,289.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,300.70 : 1,086,445.65 = 218,860.70 : x
  2. Step 2: Convert to fraction form
    724,300.70/1,086,445.65 = 218,860.70/x
  3. Step 3: Cross multiply
    724,300.70x = 1,086,445.65 × 218,860.70
  4. Step 4: Simplify right side
    724,300.70x = 237,780,255,470.96
  5. Step 5: Solve for x
    x = 237,780,255,470.96/724,300.70
  6. Step 6: Final answer
    x = 328,289.42

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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.