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Finding the Fourth Proportional to 565,720.08, 780,582 and 317,370.36

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Solution

The fourth proportional to 565,720.08, 780,582 and 317,370.36 is: 437,908.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,720.08 : 780,582 = 317,370.36 : x
  2. Step 2: Convert to fraction form
    565,720.08/780,582 = 317,370.36/x
  3. Step 3: Cross multiply
    565,720.08x = 780,582 × 317,370.36
  4. Step 4: Simplify right side
    565,720.08x = 247,733,590,349.52
  5. Step 5: Solve for x
    x = 247,733,590,349.52/565,720.08
  6. Step 6: Final answer
    x = 437,908.43

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