Home / 578,665.08-868,558.62-279,356.28

Finding the Fourth Proportional to 578,665.08, 868,558.62 and 279,356.28

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Solution

The fourth proportional to 578,665.08, 868,558.62 and 279,356.28 is: 419,305.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,665.08 : 868,558.62 = 279,356.28 : x
  2. Step 2: Convert to fraction form
    578,665.08/868,558.62 = 279,356.28/x
  3. Step 3: Cross multiply
    578,665.08x = 868,558.62 × 279,356.28
  4. Step 4: Simplify right side
    578,665.08x = 242,637,305,045.13
  5. Step 5: Solve for x
    x = 242,637,305,045.13/578,665.08
  6. Step 6: Final answer
    x = 419,305.25

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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.