Home / 565,153.32-779,872.26-310,515.24

Finding the Fourth Proportional to 565,153.32, 779,872.26 and 310,515.24

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Solution

The fourth proportional to 565,153.32, 779,872.26 and 310,515.24 is: 428,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,153.32 : 779,872.26 = 310,515.24 : x
  2. Step 2: Convert to fraction form
    565,153.32/779,872.26 = 310,515.24/x
  3. Step 3: Cross multiply
    565,153.32x = 779,872.26 × 310,515.24
  4. Step 4: Simplify right side
    565,153.32x = 242,162,221,983.24
  5. Step 5: Solve for x
    x = 242,162,221,983.24/565,153.32
  6. Step 6: Final answer
    x = 428,489.43

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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.