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Finding the Fourth Proportional to 418,497.88, 576,730.69 and 303,578.32

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Solution

The fourth proportional to 418,497.88, 576,730.69 and 303,578.32 is: 418,360.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,497.88 : 576,730.69 = 303,578.32 : x
  2. Step 2: Convert to fraction form
    418,497.88/576,730.69 = 303,578.32/x
  3. Step 3: Cross multiply
    418,497.88x = 576,730.69 × 303,578.32
  4. Step 4: Simplify right side
    418,497.88x = 175,082,933,962.64
  5. Step 5: Solve for x
    x = 175,082,933,962.64/418,497.88
  6. Step 6: Final answer
    x = 418,360.38

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1.5x scale

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.