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Finding the Fourth Proportional to 520,440.12, 779,412.78 and 267,054.12

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Solution

The fourth proportional to 520,440.12, 779,412.78 and 267,054.12 is: 399,941.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,440.12 : 779,412.78 = 267,054.12 : x
  2. Step 2: Convert to fraction form
    520,440.12/779,412.78 = 267,054.12/x
  3. Step 3: Cross multiply
    520,440.12x = 779,412.78 × 267,054.12
  4. Step 4: Simplify right side
    520,440.12x = 208,145,394,079.65
  5. Step 5: Solve for x
    x = 208,145,394,079.65/520,440.12
  6. Step 6: Final answer
    x = 399,941.10

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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.