Home / 890,899.40-1,336,349.04-259,813.16

Finding the Fourth Proportional to 890,899.40, 1,336,349.04 and 259,813.16

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Solution

The fourth proportional to 890,899.40, 1,336,349.04 and 259,813.16 is: 389,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,899.40 : 1,336,349.04 = 259,813.16 : x
  2. Step 2: Convert to fraction form
    890,899.40/1,336,349.04 = 259,813.16/x
  3. Step 3: Cross multiply
    890,899.40x = 1,336,349.04 × 259,813.16
  4. Step 4: Simplify right side
    890,899.40x = 347,201,066,945.37
  5. Step 5: Solve for x
    x = 347,201,066,945.37/890,899.40
  6. Step 6: Final answer
    x = 389,719.72

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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.