Home / 724,849.06-1,000,631.69-418,865.68

Finding the Fourth Proportional to 724,849.06, 1,000,631.69 and 418,865.68

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Solution

The fourth proportional to 724,849.06, 1,000,631.69 and 418,865.68 is: 578,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,849.06 : 1,000,631.69 = 418,865.68 : x
  2. Step 2: Convert to fraction form
    724,849.06/1,000,631.69 = 418,865.68/x
  3. Step 3: Cross multiply
    724,849.06x = 1,000,631.69 × 418,865.68
  4. Step 4: Simplify right side
    724,849.06x = 419,130,273,261.40
  5. Step 5: Solve for x
    x = 419,130,273,261.40/724,849.06
  6. Step 6: Final answer
    x = 578,231.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.