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Finding the Fourth Proportional to 1,258,362.24, 1,736,919.36 and 856,187.52

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Solution

The fourth proportional to 1,258,362.24, 1,736,919.36 and 856,187.52 is: 1,181,796.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,362.24 : 1,736,919.36 = 856,187.52 : x
  2. Step 2: Convert to fraction form
    1,258,362.24/1,736,919.36 = 856,187.52/x
  3. Step 3: Cross multiply
    1,258,362.24x = 1,736,919.36 × 856,187.52
  4. Step 4: Simplify right side
    1,258,362.24x = 1,487,128,679,278.39
  5. Step 5: Solve for x
    x = 1,487,128,679,278.39/1,258,362.24
  6. Step 6: Final answer
    x = 1,181,796.97

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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.