Home / 840,008.97-1,259,619.39-307,157.40

Finding the Fourth Proportional to 840,008.97, 1,259,619.39 and 307,157.40

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Solution

The fourth proportional to 840,008.97, 1,259,619.39 and 307,157.40 is: 460,592.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,008.97 : 1,259,619.39 = 307,157.40 : x
  2. Step 2: Convert to fraction form
    840,008.97/1,259,619.39 = 307,157.40/x
  3. Step 3: Cross multiply
    840,008.97x = 1,259,619.39 × 307,157.40
  4. Step 4: Simplify right side
    840,008.97x = 386,901,416,821.99
  5. Step 5: Solve for x
    x = 386,901,416,821.99/840,008.97
  6. Step 6: Final answer
    x = 460,592.01

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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.