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Finding the Fourth Proportional to 520,052.60, 779,495.70 and 267,235.40

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Solution

The fourth proportional to 520,052.60, 779,495.70 and 267,235.40 is: 400,553.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,052.60 : 779,495.70 = 267,235.40 : x
  2. Step 2: Convert to fraction form
    520,052.60/779,495.70 = 267,235.40/x
  3. Step 3: Cross multiply
    520,052.60x = 779,495.70 × 267,235.40
  4. Step 4: Simplify right side
    520,052.60x = 208,308,845,187.78
  5. Step 5: Solve for x
    x = 208,308,845,187.78/520,052.60
  6. Step 6: Final answer
    x = 400,553.42

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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.