Home / 1,314,345.48-1,812,961.62-861,665.64

Finding the Fourth Proportional to 1,314,345.48, 1,812,961.62 and 861,665.64

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Solution

The fourth proportional to 1,314,345.48, 1,812,961.62 and 861,665.64 is: 1,188,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,345.48 : 1,812,961.62 = 861,665.64 : x
  2. Step 2: Convert to fraction form
    1,314,345.48/1,812,961.62 = 861,665.64/x
  3. Step 3: Cross multiply
    1,314,345.48x = 1,812,961.62 × 861,665.64
  4. Step 4: Simplify right side
    1,314,345.48x = 1,562,166,734,592.74
  5. Step 5: Solve for x
    x = 1,562,166,734,592.74/1,314,345.48
  6. Step 6: Final answer
    x = 1,188,551.08

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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.