Home / 917,512.20-1,376,268.48-286,480.08

Finding the Fourth Proportional to 917,512.20, 1,376,268.48 and 286,480.08

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Solution

The fourth proportional to 917,512.20, 1,376,268.48 and 286,480.08 is: 429,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,512.20 : 1,376,268.48 = 286,480.08 : x
  2. Step 2: Convert to fraction form
    917,512.20/1,376,268.48 = 286,480.08/x
  3. Step 3: Cross multiply
    917,512.20x = 1,376,268.48 × 286,480.08
  4. Step 4: Simplify right side
    917,512.20x = 394,273,504,251.88
  5. Step 5: Solve for x
    x = 394,273,504,251.88/917,512.20
  6. Step 6: Final answer
    x = 429,720.18

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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.