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Finding the Fourth Proportional to 562,519.90, 776,279.52 and 304,396.84

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Solution

The fourth proportional to 562,519.90, 776,279.52 and 304,396.84 is: 420,068.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,519.90 : 776,279.52 = 304,396.84 : x
  2. Step 2: Convert to fraction form
    562,519.90/776,279.52 = 304,396.84/x
  3. Step 3: Cross multiply
    562,519.90x = 776,279.52 × 304,396.84
  4. Step 4: Simplify right side
    562,519.90x = 236,297,032,844.72
  5. Step 5: Solve for x
    x = 236,297,032,844.72/562,519.90
  6. Step 6: Final answer
    x = 420,068.75

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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.