Home / 480,828.60-721,242.90-200,309.40

Finding the Fourth Proportional to 480,828.60, 721,242.90 and 200,309.40

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Solution

The fourth proportional to 480,828.60, 721,242.90 and 200,309.40 is: 300,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,828.60 : 721,242.90 = 200,309.40 : x
  2. Step 2: Convert to fraction form
    480,828.60/721,242.90 = 200,309.40/x
  3. Step 3: Cross multiply
    480,828.60x = 721,242.90 × 200,309.40
  4. Step 4: Simplify right side
    480,828.60x = 144,471,732,553.26
  5. Step 5: Solve for x
    x = 144,471,732,553.26/480,828.60
  6. Step 6: Final answer
    x = 300,464.10

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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.