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Finding the Fourth Proportional to 515,607, 773,379.42 and 306,575.16

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Solution

The fourth proportional to 515,607, 773,379.42 and 306,575.16 is: 459,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,607 : 773,379.42 = 306,575.16 : x
  2. Step 2: Convert to fraction form
    515,607/773,379.42 = 306,575.16/x
  3. Step 3: Cross multiply
    515,607x = 773,379.42 × 306,575.16
  4. Step 4: Simplify right side
    515,607x = 237,098,919,427.21
  5. Step 5: Solve for x
    x = 237,098,919,427.21/515,607
  6. Step 6: Final answer
    x = 459,844.26

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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.