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Finding the Fourth Proportional to 565,125.56, 779,884.30 and 310,486.36

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Solution

The fourth proportional to 565,125.56, 779,884.30 and 310,486.36 is: 428,477.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,125.56 : 779,884.30 = 310,486.36 : x
  2. Step 2: Convert to fraction form
    565,125.56/779,884.30 = 310,486.36/x
  3. Step 3: Cross multiply
    565,125.56x = 779,884.30 × 310,486.36
  4. Step 4: Simplify right side
    565,125.56x = 242,143,437,528.15
  5. Step 5: Solve for x
    x = 242,143,437,528.15/565,125.56
  6. Step 6: Final answer
    x = 428,477.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.