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Finding the Fourth Proportional to 554,503.32, 765,211.86 and 299,853.90

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Solution

The fourth proportional to 554,503.32, 765,211.86 and 299,853.90 is: 413,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,503.32 : 765,211.86 = 299,853.90 : x
  2. Step 2: Convert to fraction form
    554,503.32/765,211.86 = 299,853.90/x
  3. Step 3: Cross multiply
    554,503.32x = 765,211.86 × 299,853.90
  4. Step 4: Simplify right side
    554,503.32x = 229,451,760,547.25
  5. Step 5: Solve for x
    x = 229,451,760,547.25/554,503.32
  6. Step 6: Final answer
    x = 413,796.91

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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.