Home / 284,289.56-426,454.86-81,877.40

Finding the Fourth Proportional to 284,289.56, 426,454.86 and 81,877.40

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Solution

The fourth proportional to 284,289.56, 426,454.86 and 81,877.40 is: 122,822.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,289.56 : 426,454.86 = 81,877.40 : x
  2. Step 2: Convert to fraction form
    284,289.56/426,454.86 = 81,877.40/x
  3. Step 3: Cross multiply
    284,289.56x = 426,454.86 × 81,877.40
  4. Step 4: Simplify right side
    284,289.56x = 34,917,015,154.16
  5. Step 5: Solve for x
    x = 34,917,015,154.16/284,289.56
  6. Step 6: Final answer
    x = 122,822.01

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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.