Home / 1,239,722.90-1,858,861.82-480,677.63

Finding the Fourth Proportional to 1,239,722.90, 1,858,861.82 and 480,677.63

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Solution

The fourth proportional to 1,239,722.90, 1,858,861.82 and 480,677.63 is: 720,736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,722.90 : 1,858,861.82 = 480,677.63 : x
  2. Step 2: Convert to fraction form
    1,239,722.90/1,858,861.82 = 480,677.63/x
  3. Step 3: Cross multiply
    1,239,722.90x = 1,858,861.82 × 480,677.63
  4. Step 4: Simplify right side
    1,239,722.90x = 893,513,282,437.39
  5. Step 5: Solve for x
    x = 893,513,282,437.39/1,239,722.90
  6. Step 6: Final answer
    x = 720,736.29

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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.