Home / 565,629.94-780,549.37-310,979.17

Finding the Fourth Proportional to 565,629.94, 780,549.37 and 310,979.17

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Solution

The fourth proportional to 565,629.94, 780,549.37 and 310,979.17 is: 429,140.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,629.94 : 780,549.37 = 310,979.17 : x
  2. Step 2: Convert to fraction form
    565,629.94/780,549.37 = 310,979.17/x
  3. Step 3: Cross multiply
    565,629.94x = 780,549.37 × 310,979.17
  4. Step 4: Simplify right side
    565,629.94x = 242,734,595,226.62
  5. Step 5: Solve for x
    x = 242,734,595,226.62/565,629.94
  6. Step 6: Final answer
    x = 429,140.29

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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.