Home / 1,215,620.10-1,823,430.15-374,429.70

Finding the Fourth Proportional to 1,215,620.10, 1,823,430.15 and 374,429.70

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Solution

The fourth proportional to 1,215,620.10, 1,823,430.15 and 374,429.70 is: 561,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,620.10 : 1,823,430.15 = 374,429.70 : x
  2. Step 2: Convert to fraction form
    1,215,620.10/1,823,430.15 = 374,429.70/x
  3. Step 3: Cross multiply
    1,215,620.10x = 1,823,430.15 × 374,429.70
  4. Step 4: Simplify right side
    1,215,620.10x = 682,746,404,035.46
  5. Step 5: Solve for x
    x = 682,746,404,035.46/1,215,620.10
  6. Step 6: Final answer
    x = 561,644.55

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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.