Home / 763,594.61-1,145,874.69-426,856.28

Finding the Fourth Proportional to 763,594.61, 1,145,874.69 and 426,856.28

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Solution

The fourth proportional to 763,594.61, 1,145,874.69 and 426,856.28 is: 640,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,594.61 : 1,145,874.69 = 426,856.28 : x
  2. Step 2: Convert to fraction form
    763,594.61/1,145,874.69 = 426,856.28/x
  3. Step 3: Cross multiply
    763,594.61x = 1,145,874.69 × 426,856.28
  4. Step 4: Simplify right side
    763,594.61x = 489,123,801,790.18
  5. Step 5: Solve for x
    x = 489,123,801,790.18/763,594.61
  6. Step 6: Final answer
    x = 640,554.29

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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.