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Finding the Fourth Proportional to 284,585.65, 426,823.80 and 84,912.55

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Solution

The fourth proportional to 284,585.65, 426,823.80 and 84,912.55 is: 127,352.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,585.65 : 426,823.80 = 84,912.55 : x
  2. Step 2: Convert to fraction form
    284,585.65/426,823.80 = 84,912.55/x
  3. Step 3: Cross multiply
    284,585.65x = 426,823.80 × 84,912.55
  4. Step 4: Simplify right side
    284,585.65x = 36,242,697,258.69
  5. Step 5: Solve for x
    x = 36,242,697,258.69/284,585.65
  6. Step 6: Final answer
    x = 127,352.51

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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.