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Finding the Fourth Proportional to 564,626.94, 779,186.51 and 309,994.53

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Solution

The fourth proportional to 564,626.94, 779,186.51 and 309,994.53 is: 427,793.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,626.94 : 779,186.51 = 309,994.53 : x
  2. Step 2: Convert to fraction form
    564,626.94/779,186.51 = 309,994.53/x
  3. Step 3: Cross multiply
    564,626.94x = 779,186.51 × 309,994.53
  4. Step 4: Simplify right side
    564,626.94x = 241,543,555,949.79
  5. Step 5: Solve for x
    x = 241,543,555,949.79/564,626.94
  6. Step 6: Final answer
    x = 427,793.18

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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.