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Finding the Fourth Proportional to 520,801.20, 780,618.60 and 296,269.20

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Solution

The fourth proportional to 520,801.20, 780,618.60 and 296,269.20 is: 444,072.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,801.20 : 780,618.60 = 296,269.20 : x
  2. Step 2: Convert to fraction form
    520,801.20/780,618.60 = 296,269.20/x
  3. Step 3: Cross multiply
    520,801.20x = 780,618.60 × 296,269.20
  4. Step 4: Simplify right side
    520,801.20x = 231,273,248,127.12
  5. Step 5: Solve for x
    x = 231,273,248,127.12/520,801.20
  6. Step 6: Final answer
    x = 444,072.03

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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.