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Finding the Fourth Proportional to 489,056.55, 733,584.83 and 485,946.15

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Solution

The fourth proportional to 489,056.55, 733,584.83 and 485,946.15 is: 728,919.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,056.55 : 733,584.83 = 485,946.15 : x
  2. Step 2: Convert to fraction form
    489,056.55/733,584.83 = 485,946.15/x
  3. Step 3: Cross multiply
    489,056.55x = 733,584.83 × 485,946.15
  4. Step 4: Simplify right side
    489,056.55x = 356,482,721,407.17
  5. Step 5: Solve for x
    x = 356,482,721,407.17/489,056.55
  6. Step 6: Final answer
    x = 728,919.23

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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.