Home / 1,337,974.80-2,006,978.60-391,364.65

Finding the Fourth Proportional to 1,337,974.80, 2,006,978.60 and 391,364.65

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Solution

The fourth proportional to 1,337,974.80, 2,006,978.60 and 391,364.65 is: 587,051.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337,974.80 : 2,006,978.60 = 391,364.65 : x
  2. Step 2: Convert to fraction form
    1,337,974.80/2,006,978.60 = 391,364.65/x
  3. Step 3: Cross multiply
    1,337,974.80x = 2,006,978.60 × 391,364.65
  4. Step 4: Simplify right side
    1,337,974.80x = 785,460,477,346.49
  5. Step 5: Solve for x
    x = 785,460,477,346.49/1,337,974.80
  6. Step 6: Final answer
    x = 587,051.77

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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.