Home / 1,108,028.10-1,662,042.15-919,071.30

Finding the Fourth Proportional to 1,108,028.10, 1,662,042.15 and 919,071.30

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Solution

The fourth proportional to 1,108,028.10, 1,662,042.15 and 919,071.30 is: 1,378,606.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,028.10 : 1,662,042.15 = 919,071.30 : x
  2. Step 2: Convert to fraction form
    1,108,028.10/1,662,042.15 = 919,071.30/x
  3. Step 3: Cross multiply
    1,108,028.10x = 1,662,042.15 × 919,071.30
  4. Step 4: Simplify right side
    1,108,028.10x = 1,527,535,239,455.30
  5. Step 5: Solve for x
    x = 1,527,535,239,455.30/1,108,028.10
  6. Step 6: Final answer
    x = 1,378,606.95

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Double scale
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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.