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Finding the Fourth Proportional to 519,329.62, 716,548.65 and 304,428.16

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Solution

The fourth proportional to 519,329.62, 716,548.65 and 304,428.16 is: 420,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,329.62 : 716,548.65 = 304,428.16 : x
  2. Step 2: Convert to fraction form
    519,329.62/716,548.65 = 304,428.16/x
  3. Step 3: Cross multiply
    519,329.62x = 716,548.65 × 304,428.16
  4. Step 4: Simplify right side
    519,329.62x = 218,137,587,069.98
  5. Step 5: Solve for x
    x = 218,137,587,069.98/519,329.62
  6. Step 6: Final answer
    x = 420,036.87

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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.