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Finding the Fourth Proportional to 560,841.93, 840,563.06 and 280,439.37

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Solution

The fourth proportional to 560,841.93, 840,563.06 and 280,439.37 is: 420,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,841.93 : 840,563.06 = 280,439.37 : x
  2. Step 2: Convert to fraction form
    560,841.93/840,563.06 = 280,439.37/x
  3. Step 3: Cross multiply
    560,841.93x = 840,563.06 × 280,439.37
  4. Step 4: Simplify right side
    560,841.93x = 235,726,973,589.48
  5. Step 5: Solve for x
    x = 235,726,973,589.48/560,841.93
  6. Step 6: Final answer
    x = 420,309.11

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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.