Home / 1,299,088.80-1,948,940.40-412,624.80

Finding the Fourth Proportional to 1,299,088.80, 1,948,940.40 and 412,624.80

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Solution

The fourth proportional to 1,299,088.80, 1,948,940.40 and 412,624.80 is: 619,034.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,088.80 : 1,948,940.40 = 412,624.80 : x
  2. Step 2: Convert to fraction form
    1,299,088.80/1,948,940.40 = 412,624.80/x
  3. Step 3: Cross multiply
    1,299,088.80x = 1,948,940.40 × 412,624.80
  4. Step 4: Simplify right side
    1,299,088.80x = 804,181,142,761.92
  5. Step 5: Solve for x
    x = 804,181,142,761.92/1,299,088.80
  6. Step 6: Final answer
    x = 619,034.77

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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.