Home / 415,415.50-623,228.34-115,895.86

Finding the Fourth Proportional to 415,415.50, 623,228.34 and 115,895.86

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Solution

The fourth proportional to 415,415.50, 623,228.34 and 115,895.86 is: 173,873.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,415.50 : 623,228.34 = 115,895.86 : x
  2. Step 2: Convert to fraction form
    415,415.50/623,228.34 = 115,895.86/x
  3. Step 3: Cross multiply
    415,415.50x = 623,228.34 × 115,895.86
  4. Step 4: Simplify right side
    415,415.50x = 72,229,586,822.87
  5. Step 5: Solve for x
    x = 72,229,586,822.87/415,415.50
  6. Step 6: Final answer
    x = 173,873.12

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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.