Home / 1,339,285.81-2,008,970.38-637,251.89

Finding the Fourth Proportional to 1,339,285.81, 2,008,970.38 and 637,251.89

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Solution

The fourth proportional to 1,339,285.81, 2,008,970.38 and 637,251.89 is: 955,897.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,285.81 : 2,008,970.38 = 637,251.89 : x
  2. Step 2: Convert to fraction form
    1,339,285.81/2,008,970.38 = 637,251.89/x
  3. Step 3: Cross multiply
    1,339,285.81x = 2,008,970.38 × 637,251.89
  4. Step 4: Simplify right side
    1,339,285.81x = 1,280,220,170,015.89
  5. Step 5: Solve for x
    x = 1,280,220,170,015.89/1,339,285.81
  6. Step 6: Final answer
    x = 955,897.66

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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.