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Finding the Fourth Proportional to 520,044.90, 780,326.55 and 295,577.70

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Solution

The fourth proportional to 520,044.90, 780,326.55 and 295,577.70 is: 443,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,044.90 : 780,326.55 = 295,577.70 : x
  2. Step 2: Convert to fraction form
    520,044.90/780,326.55 = 295,577.70/x
  3. Step 3: Cross multiply
    520,044.90x = 780,326.55 × 295,577.70
  4. Step 4: Simplify right side
    520,044.90x = 230,647,126,897.94
  5. Step 5: Solve for x
    x = 230,647,126,897.94/520,044.90
  6. Step 6: Final answer
    x = 443,513.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.