Home / 824,297.60-1,235,755.20-430,313.60

Finding the Fourth Proportional to 824,297.60, 1,235,755.20 and 430,313.60

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Solution

The fourth proportional to 824,297.60, 1,235,755.20 and 430,313.60 is: 645,109.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,297.60 : 1,235,755.20 = 430,313.60 : x
  2. Step 2: Convert to fraction form
    824,297.60/1,235,755.20 = 430,313.60/x
  3. Step 3: Cross multiply
    824,297.60x = 1,235,755.20 × 430,313.60
  4. Step 4: Simplify right side
    824,297.60x = 531,762,268,830.72
  5. Step 5: Solve for x
    x = 531,762,268,830.72/824,297.60
  6. Step 6: Final answer
    x = 645,109.57

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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.