Home / 284,585.28-426,877.86-74,222.64

Finding the Fourth Proportional to 284,585.28, 426,877.86 and 74,222.64

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Solution

The fourth proportional to 284,585.28, 426,877.86 and 74,222.64 is: 111,333.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,585.28 : 426,877.86 = 74,222.64 : x
  2. Step 2: Convert to fraction form
    284,585.28/426,877.86 = 74,222.64/x
  3. Step 3: Cross multiply
    284,585.28x = 426,877.86 × 74,222.64
  4. Step 4: Simplify right side
    284,585.28x = 31,684,001,726.75
  5. Step 5: Solve for x
    x = 31,684,001,726.75/284,585.28
  6. Step 6: Final answer
    x = 111,333.94

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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.