Home / 1,388,696.10-2,083,159.35-442,040.10

Finding the Fourth Proportional to 1,388,696.10, 2,083,159.35 and 442,040.10

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Solution

The fourth proportional to 1,388,696.10, 2,083,159.35 and 442,040.10 is: 663,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,696.10 : 2,083,159.35 = 442,040.10 : x
  2. Step 2: Convert to fraction form
    1,388,696.10/2,083,159.35 = 442,040.10/x
  3. Step 3: Cross multiply
    1,388,696.10x = 2,083,159.35 × 442,040.10
  4. Step 4: Simplify right side
    1,388,696.10x = 920,839,967,389.94
  5. Step 5: Solve for x
    x = 920,839,967,389.94/1,388,696.10
  6. Step 6: Final answer
    x = 663,096.82

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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.