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Finding the Fourth Proportional to 578,040.40, 867,044.40 and 262,496.80

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Solution

The fourth proportional to 578,040.40, 867,044.40 and 262,496.80 is: 393,737.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,040.40 : 867,044.40 = 262,496.80 : x
  2. Step 2: Convert to fraction form
    578,040.40/867,044.40 = 262,496.80/x
  3. Step 3: Cross multiply
    578,040.40x = 867,044.40 × 262,496.80
  4. Step 4: Simplify right side
    578,040.40x = 227,596,380,457.92
  5. Step 5: Solve for x
    x = 227,596,380,457.92/578,040.40
  6. Step 6: Final answer
    x = 393,737.84

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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.