Home / 1,137,912.20-1,707,386.70-538,641.80

Finding the Fourth Proportional to 1,137,912.20, 1,707,386.70 and 538,641.80

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Solution

The fourth proportional to 1,137,912.20, 1,707,386.70 and 538,641.80 is: 808,208.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,912.20 : 1,707,386.70 = 538,641.80 : x
  2. Step 2: Convert to fraction form
    1,137,912.20/1,707,386.70 = 538,641.80/x
  3. Step 3: Cross multiply
    1,137,912.20x = 1,707,386.70 × 538,641.80
  4. Step 4: Simplify right side
    1,137,912.20x = 919,669,845,384.06
  5. Step 5: Solve for x
    x = 919,669,845,384.06/1,137,912.20
  6. Step 6: Final answer
    x = 808,208.09

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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.