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Finding the Fourth Proportional to 574,856.03, 862,653.09 and 385,530.20

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Solution

The fourth proportional to 574,856.03, 862,653.09 and 385,530.20 is: 578,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,856.03 : 862,653.09 = 385,530.20 : x
  2. Step 2: Convert to fraction form
    574,856.03/862,653.09 = 385,530.20/x
  3. Step 3: Cross multiply
    574,856.03x = 862,653.09 × 385,530.20
  4. Step 4: Simplify right side
    574,856.03x = 332,578,818,318.32
  5. Step 5: Solve for x
    x = 332,578,818,318.32/574,856.03
  6. Step 6: Final answer
    x = 578,542.80

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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.