Home / 688,376.46-1,032,408.75-261,760.20

Finding the Fourth Proportional to 688,376.46, 1,032,408.75 and 261,760.20

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Solution

The fourth proportional to 688,376.46, 1,032,408.75 and 261,760.20 is: 392,581.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,376.46 : 1,032,408.75 = 261,760.20 : x
  2. Step 2: Convert to fraction form
    688,376.46/1,032,408.75 = 261,760.20/x
  3. Step 3: Cross multiply
    688,376.46x = 1,032,408.75 × 261,760.20
  4. Step 4: Simplify right side
    688,376.46x = 270,243,520,881.75
  5. Step 5: Solve for x
    x = 270,243,520,881.75/688,376.46
  6. Step 6: Final answer
    x = 392,581.00

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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.