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Finding the Fourth Proportional to 519,578.64, 779,775.66 and 266,848.92

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Solution

The fourth proportional to 519,578.64, 779,775.66 and 266,848.92 is: 400,482.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,578.64 : 779,775.66 = 266,848.92 : x
  2. Step 2: Convert to fraction form
    519,578.64/779,775.66 = 266,848.92/x
  3. Step 3: Cross multiply
    519,578.64x = 779,775.66 × 266,848.92
  4. Step 4: Simplify right side
    519,578.64x = 208,082,292,713.29
  5. Step 5: Solve for x
    x = 208,082,292,713.29/519,578.64
  6. Step 6: Final answer
    x = 400,482.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.