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Finding the Fourth Proportional to 554,578.83, 765,319.28 and 299,930.02

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Solution

The fourth proportional to 554,578.83, 765,319.28 and 299,930.02 is: 413,903.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,578.83 : 765,319.28 = 299,930.02 : x
  2. Step 2: Convert to fraction form
    554,578.83/765,319.28 = 299,930.02/x
  3. Step 3: Cross multiply
    554,578.83x = 765,319.28 × 299,930.02
  4. Step 4: Simplify right side
    554,578.83x = 229,542,223,543.84
  5. Step 5: Solve for x
    x = 229,542,223,543.84/554,578.83
  6. Step 6: Final answer
    x = 413,903.69

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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.