Home / 1,090,506.52-1,635,908.80-380,428.12

Finding the Fourth Proportional to 1,090,506.52, 1,635,908.80 and 380,428.12

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Solution

The fourth proportional to 1,090,506.52, 1,635,908.80 and 380,428.12 is: 570,694.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,506.52 : 1,635,908.80 = 380,428.12 : x
  2. Step 2: Convert to fraction form
    1,090,506.52/1,635,908.80 = 380,428.12/x
  3. Step 3: Cross multiply
    1,090,506.52x = 1,635,908.80 × 380,428.12
  4. Step 4: Simplify right side
    1,090,506.52x = 622,345,709,275.46
  5. Step 5: Solve for x
    x = 622,345,709,275.46/1,090,506.52
  6. Step 6: Final answer
    x = 570,694.17

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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.