Home / 545,917.28-753,370.78-300,888.60

Finding the Fourth Proportional to 545,917.28, 753,370.78 and 300,888.60

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Solution

The fourth proportional to 545,917.28, 753,370.78 and 300,888.60 is: 415,228.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,917.28 : 753,370.78 = 300,888.60 : x
  2. Step 2: Convert to fraction form
    545,917.28/753,370.78 = 300,888.60/x
  3. Step 3: Cross multiply
    545,917.28x = 753,370.78 × 300,888.60
  4. Step 4: Simplify right side
    545,917.28x = 226,680,679,275.11
  5. Step 5: Solve for x
    x = 226,680,679,275.11/545,917.28
  6. Step 6: Final answer
    x = 415,228.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.