Home / 811,946.16-1,218,269.24-338,724.72

Finding the Fourth Proportional to 811,946.16, 1,218,269.24 and 338,724.72

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Solution

The fourth proportional to 811,946.16, 1,218,269.24 and 338,724.72 is: 508,233.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,946.16 : 1,218,269.24 = 338,724.72 : x
  2. Step 2: Convert to fraction form
    811,946.16/1,218,269.24 = 338,724.72/x
  3. Step 3: Cross multiply
    811,946.16x = 1,218,269.24 × 338,724.72
  4. Step 4: Simplify right side
    811,946.16x = 412,657,907,203.61
  5. Step 5: Solve for x
    x = 412,657,907,203.61/811,946.16
  6. Step 6: Final answer
    x = 508,233.09

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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.