Home / 529,480.14-730,687.43-287,763.36

Finding the Fourth Proportional to 529,480.14, 730,687.43 and 287,763.36

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Solution

The fourth proportional to 529,480.14, 730,687.43 and 287,763.36 is: 397,116.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,480.14 : 730,687.43 = 287,763.36 : x
  2. Step 2: Convert to fraction form
    529,480.14/730,687.43 = 287,763.36/x
  3. Step 3: Cross multiply
    529,480.14x = 730,687.43 × 287,763.36
  4. Step 4: Simplify right side
    529,480.14x = 210,265,070,685.97
  5. Step 5: Solve for x
    x = 210,265,070,685.97/529,480.14
  6. Step 6: Final answer
    x = 397,116.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.