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Finding the Fourth Proportional to 565,158.51, 779,906.21 and 307,028.79

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Solution

The fourth proportional to 565,158.51, 779,906.21 and 307,028.79 is: 423,692.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,158.51 : 779,906.21 = 307,028.79 : x
  2. Step 2: Convert to fraction form
    565,158.51/779,906.21 = 307,028.79/x
  3. Step 3: Cross multiply
    565,158.51x = 779,906.21 × 307,028.79
  4. Step 4: Simplify right side
    565,158.51x = 239,453,658,434.64
  5. Step 5: Solve for x
    x = 239,453,658,434.64/565,158.51
  6. Step 6: Final answer
    x = 423,692.92

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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.