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Finding the Fourth Proportional to 545,907.26, 753,408.08 and 328,186.42

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Solution

The fourth proportional to 545,907.26, 753,408.08 and 328,186.42 is: 452,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,907.26 : 753,408.08 = 328,186.42 : x
  2. Step 2: Convert to fraction form
    545,907.26/753,408.08 = 328,186.42/x
  3. Step 3: Cross multiply
    545,907.26x = 753,408.08 × 328,186.42
  4. Step 4: Simplify right side
    545,907.26x = 247,258,298,280.52
  5. Step 5: Solve for x
    x = 247,258,298,280.52/545,907.26
  6. Step 6: Final answer
    x = 452,930.96

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1.5x scale

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.