Home / 3,438,321.60-5,157,482.40-1,640,279.55

Finding the Fourth Proportional to 3,438,321.60, 5,157,482.40 and 1,640,279.55

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Solution

The fourth proportional to 3,438,321.60, 5,157,482.40 and 1,640,279.55 is: 2,460,419.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438,321.60 : 5,157,482.40 = 1,640,279.55 : x
  2. Step 2: Convert to fraction form
    3,438,321.60/5,157,482.40 = 1,640,279.55/x
  3. Step 3: Cross multiply
    3,438,321.60x = 5,157,482.40 × 1,640,279.55
  4. Step 4: Simplify right side
    3,438,321.60x = 8,459,712,910,204.92
  5. Step 5: Solve for x
    x = 8,459,712,910,204.92/3,438,321.60
  6. Step 6: Final answer
    x = 2,460,419.33

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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.