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Finding the Fourth Proportional to 543,452.86, 749,988.40 and 301,735.48

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Solution

The fourth proportional to 543,452.86, 749,988.40 and 301,735.48 is: 416,407.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,452.86 : 749,988.40 = 301,735.48 : x
  2. Step 2: Convert to fraction form
    543,452.86/749,988.40 = 301,735.48/x
  3. Step 3: Cross multiply
    543,452.86x = 749,988.40 × 301,735.48
  4. Step 4: Simplify right side
    543,452.86x = 226,298,109,868.43
  5. Step 5: Solve for x
    x = 226,298,109,868.43/543,452.86
  6. Step 6: Final answer
    x = 416,407.98

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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.