Home / 3,720,439.80-5,580,659.70-3,657,454.20

Finding the Fourth Proportional to 3,720,439.80, 5,580,659.70 and 3,657,454.20

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Solution

The fourth proportional to 3,720,439.80, 5,580,659.70 and 3,657,454.20 is: 5,486,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720,439.80 : 5,580,659.70 = 3,657,454.20 : x
  2. Step 2: Convert to fraction form
    3,720,439.80/5,580,659.70 = 3,657,454.20/x
  3. Step 3: Cross multiply
    3,720,439.80x = 5,580,659.70 × 3,657,454.20
  4. Step 4: Simplify right side
    3,720,439.80x = 20,411,007,258,535.74
  5. Step 5: Solve for x
    x = 20,411,007,258,535.74/3,720,439.80
  6. Step 6: Final answer
    x = 5,486,181.30

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1.5x scale

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.