Home / 1,115,081.93-1,538,844.62-631,646.95

Finding the Fourth Proportional to 1,115,081.93, 1,538,844.62 and 631,646.95

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Solution

The fourth proportional to 1,115,081.93, 1,538,844.62 and 631,646.95 is: 871,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,081.93 : 1,538,844.62 = 631,646.95 : x
  2. Step 2: Convert to fraction form
    1,115,081.93/1,538,844.62 = 631,646.95/x
  3. Step 3: Cross multiply
    1,115,081.93x = 1,538,844.62 × 631,646.95
  4. Step 4: Simplify right side
    1,115,081.93x = 972,006,507,127.73
  5. Step 5: Solve for x
    x = 972,006,507,127.73/1,115,081.93
  6. Step 6: Final answer
    x = 871,690.66

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.