Home / 857,270.03-1,285,975.17-430,586.46

Finding the Fourth Proportional to 857,270.03, 1,285,975.17 and 430,586.46

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Solution

The fourth proportional to 857,270.03, 1,285,975.17 and 430,586.46 is: 645,914.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,270.03 : 1,285,975.17 = 430,586.46 : x
  2. Step 2: Convert to fraction form
    857,270.03/1,285,975.17 = 430,586.46/x
  3. Step 3: Cross multiply
    857,270.03x = 1,285,975.17 × 430,586.46
  4. Step 4: Simplify right side
    857,270.03x = 553,723,496,098.20
  5. Step 5: Solve for x
    x = 553,723,496,098.20/857,270.03
  6. Step 6: Final answer
    x = 645,914.92

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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.