Home / 724,097.20-1,086,140.40-218,657.20

Finding the Fourth Proportional to 724,097.20, 1,086,140.40 and 218,657.20

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Solution

The fourth proportional to 724,097.20, 1,086,140.40 and 218,657.20 is: 327,984.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,097.20 : 1,086,140.40 = 218,657.20 : x
  2. Step 2: Convert to fraction form
    724,097.20/1,086,140.40 = 218,657.20/x
  3. Step 3: Cross multiply
    724,097.20x = 1,086,140.40 × 218,657.20
  4. Step 4: Simplify right side
    724,097.20x = 237,492,418,670.88
  5. Step 5: Solve for x
    x = 237,492,418,670.88/724,097.20
  6. Step 6: Final answer
    x = 327,984.17

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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.