Home / 824,301.60-1,235,761.20-430,317.60

Finding the Fourth Proportional to 824,301.60, 1,235,761.20 and 430,317.60

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Solution

The fourth proportional to 824,301.60, 1,235,761.20 and 430,317.60 is: 645,115.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,301.60 : 1,235,761.20 = 430,317.60 : x
  2. Step 2: Convert to fraction form
    824,301.60/1,235,761.20 = 430,317.60/x
  3. Step 3: Cross multiply
    824,301.60x = 1,235,761.20 × 430,317.60
  4. Step 4: Simplify right side
    824,301.60x = 531,769,793,757.12
  5. Step 5: Solve for x
    x = 531,769,793,757.12/824,301.60
  6. Step 6: Final answer
    x = 645,115.57

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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.