Home / 485,410.35-669,869.40-270,564.05

Finding the Fourth Proportional to 485,410.35, 669,869.40 and 270,564.05

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Solution

The fourth proportional to 485,410.35, 669,869.40 and 270,564.05 is: 373,380.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,410.35 : 669,869.40 = 270,564.05 : x
  2. Step 2: Convert to fraction form
    485,410.35/669,869.40 = 270,564.05/x
  3. Step 3: Cross multiply
    485,410.35x = 669,869.40 × 270,564.05
  4. Step 4: Simplify right side
    485,410.35x = 181,242,574,485.72
  5. Step 5: Solve for x
    x = 181,242,574,485.72/485,410.35
  6. Step 6: Final answer
    x = 373,380.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.