Home / 858,456.72-1,286,810.28-385,014.96

Finding the Fourth Proportional to 858,456.72, 1,286,810.28 and 385,014.96

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Solution

The fourth proportional to 858,456.72, 1,286,810.28 and 385,014.96 is: 577,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,456.72 : 1,286,810.28 = 385,014.96 : x
  2. Step 2: Convert to fraction form
    858,456.72/1,286,810.28 = 385,014.96/x
  3. Step 3: Cross multiply
    858,456.72x = 1,286,810.28 × 385,014.96
  4. Step 4: Simplify right side
    858,456.72x = 495,441,208,481.79
  5. Step 5: Solve for x
    x = 495,441,208,481.79/858,456.72
  6. Step 6: Final answer
    x = 577,130.10

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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.