Home / 492,772.20-739,158.30-315,625.20

Finding the Fourth Proportional to 492,772.20, 739,158.30 and 315,625.20

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Solution

The fourth proportional to 492,772.20, 739,158.30 and 315,625.20 is: 473,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,772.20 : 739,158.30 = 315,625.20 : x
  2. Step 2: Convert to fraction form
    492,772.20/739,158.30 = 315,625.20/x
  3. Step 3: Cross multiply
    492,772.20x = 739,158.30 × 315,625.20
  4. Step 4: Simplify right side
    492,772.20x = 233,296,986,269.16
  5. Step 5: Solve for x
    x = 233,296,986,269.16/492,772.20
  6. Step 6: Final answer
    x = 473,437.80

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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.