Home / 654,883.92-903,720.24-396,913.50

Finding the Fourth Proportional to 654,883.92, 903,720.24 and 396,913.50

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Solution

The fourth proportional to 654,883.92, 903,720.24 and 396,913.50 is: 547,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,883.92 : 903,720.24 = 396,913.50 : x
  2. Step 2: Convert to fraction form
    654,883.92/903,720.24 = 396,913.50/x
  3. Step 3: Cross multiply
    654,883.92x = 903,720.24 × 396,913.50
  4. Step 4: Simplify right side
    654,883.92x = 358,698,763,479.24
  5. Step 5: Solve for x
    x = 358,698,763,479.24/654,883.92
  6. Step 6: Final answer
    x = 547,728.77

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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.