Home / 545,865.72-753,284.64-304,143.09

Finding the Fourth Proportional to 545,865.72, 753,284.64 and 304,143.09

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Solution

The fourth proportional to 545,865.72, 753,284.64 and 304,143.09 is: 419,711.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,865.72 : 753,284.64 = 304,143.09 : x
  2. Step 2: Convert to fraction form
    545,865.72/753,284.64 = 304,143.09/x
  3. Step 3: Cross multiply
    545,865.72x = 753,284.64 × 304,143.09
  4. Step 4: Simplify right side
    545,865.72x = 229,106,316,374.86
  5. Step 5: Solve for x
    x = 229,106,316,374.86/545,865.72
  6. Step 6: Final answer
    x = 419,711.86

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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.