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Finding the Fourth Proportional to 652,250.70, 978,376.05 and 439,674.30

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Solution

The fourth proportional to 652,250.70, 978,376.05 and 439,674.30 is: 659,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,250.70 : 978,376.05 = 439,674.30 : x
  2. Step 2: Convert to fraction form
    652,250.70/978,376.05 = 439,674.30/x
  3. Step 3: Cross multiply
    652,250.70x = 978,376.05 × 439,674.30
  4. Step 4: Simplify right side
    652,250.70x = 430,166,804,920.52
  5. Step 5: Solve for x
    x = 430,166,804,920.52/652,250.70
  6. Step 6: Final answer
    x = 659,511.45

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Similar ratio
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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.