Home / 489,029.60-733,544.40-426,821.60

Finding the Fourth Proportional to 489,029.60, 733,544.40 and 426,821.60

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Solution

The fourth proportional to 489,029.60, 733,544.40 and 426,821.60 is: 640,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,029.60 : 733,544.40 = 426,821.60 : x
  2. Step 2: Convert to fraction form
    489,029.60/733,544.40 = 426,821.60/x
  3. Step 3: Cross multiply
    489,029.60x = 733,544.40 × 426,821.60
  4. Step 4: Simplify right side
    489,029.60x = 313,092,594,479.04
  5. Step 5: Solve for x
    x = 313,092,594,479.04/489,029.60
  6. Step 6: Final answer
    x = 640,232.40

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1.5x scale

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.