Home / 839,324.80-1,260,299.40-485,030.80

Finding the Fourth Proportional to 839,324.80, 1,260,299.40 and 485,030.80

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Solution

The fourth proportional to 839,324.80, 1,260,299.40 and 485,030.80 is: 728,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,324.80 : 1,260,299.40 = 485,030.80 : x
  2. Step 2: Convert to fraction form
    839,324.80/1,260,299.40 = 485,030.80/x
  3. Step 3: Cross multiply
    839,324.80x = 1,260,299.40 × 485,030.80
  4. Step 4: Simplify right side
    839,324.80x = 611,284,026,221.52
  5. Step 5: Solve for x
    x = 611,284,026,221.52/839,324.80
  6. Step 6: Final answer
    x = 728,304.50

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Double scale
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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.