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Finding the Fourth Proportional to 554,649.60, 765,211.20 and 363,768.96

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Solution

The fourth proportional to 554,649.60, 765,211.20 and 363,768.96 is: 501,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,649.60 : 765,211.20 = 363,768.96 : x
  2. Step 2: Convert to fraction form
    554,649.60/765,211.20 = 363,768.96/x
  3. Step 3: Cross multiply
    554,649.60x = 765,211.20 × 363,768.96
  4. Step 4: Simplify right side
    554,649.60x = 278,360,082,404.35
  5. Step 5: Solve for x
    x = 278,360,082,404.35/554,649.60
  6. Step 6: Final answer
    x = 501,866.55

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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.