Home / 1,101,869.70-1,652,804.55-391,920.90

Finding the Fourth Proportional to 1,101,869.70, 1,652,804.55 and 391,920.90

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Solution

The fourth proportional to 1,101,869.70, 1,652,804.55 and 391,920.90 is: 587,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,869.70 : 1,652,804.55 = 391,920.90 : x
  2. Step 2: Convert to fraction form
    1,101,869.70/1,652,804.55 = 391,920.90/x
  3. Step 3: Cross multiply
    1,101,869.70x = 1,652,804.55 × 391,920.90
  4. Step 4: Simplify right side
    1,101,869.70x = 647,768,646,760.10
  5. Step 5: Solve for x
    x = 647,768,646,760.10/1,101,869.70
  6. Step 6: Final answer
    x = 587,881.35

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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.