Home / 813,336.52-1,220,158.30-308,048.80

Finding the Fourth Proportional to 813,336.52, 1,220,158.30 and 308,048.80

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Solution

The fourth proportional to 813,336.52, 1,220,158.30 and 308,048.80 is: 462,131.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,336.52 : 1,220,158.30 = 308,048.80 : x
  2. Step 2: Convert to fraction form
    813,336.52/1,220,158.30 = 308,048.80/x
  3. Step 3: Cross multiply
    813,336.52x = 1,220,158.30 × 308,048.80
  4. Step 4: Simplify right side
    813,336.52x = 375,868,300,125.04
  5. Step 5: Solve for x
    x = 375,868,300,125.04/813,336.52
  6. Step 6: Final answer
    x = 462,131.35

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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.