Home / 578,772.46-868,407.81-279,477.07

Finding the Fourth Proportional to 578,772.46, 868,407.81 and 279,477.07

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Solution

The fourth proportional to 578,772.46, 868,407.81 and 279,477.07 is: 419,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,772.46 : 868,407.81 = 279,477.07 : x
  2. Step 2: Convert to fraction form
    578,772.46/868,407.81 = 279,477.07/x
  3. Step 3: Cross multiply
    578,772.46x = 868,407.81 × 279,477.07
  4. Step 4: Simplify right side
    578,772.46x = 242,700,071,534.48
  5. Step 5: Solve for x
    x = 242,700,071,534.48/578,772.46
  6. Step 6: Final answer
    x = 419,335.90

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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.