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Finding the Fourth Proportional to 578,368.84, 798,141.18 and 323,719.96

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Solution

The fourth proportional to 578,368.84, 798,141.18 and 323,719.96 is: 446,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,368.84 : 798,141.18 = 323,719.96 : x
  2. Step 2: Convert to fraction form
    578,368.84/798,141.18 = 323,719.96/x
  3. Step 3: Cross multiply
    578,368.84x = 798,141.18 × 323,719.96
  4. Step 4: Simplify right side
    578,368.84x = 258,374,230,863.95
  5. Step 5: Solve for x
    x = 258,374,230,863.95/578,368.84
  6. Step 6: Final answer
    x = 446,729.17

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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.