Home / 840,012.72-1,259,625.02-307,161.15

Finding the Fourth Proportional to 840,012.72, 1,259,625.02 and 307,161.15

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Solution

The fourth proportional to 840,012.72, 1,259,625.02 and 307,161.15 is: 460,597.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,012.72 : 1,259,625.02 = 307,161.15 : x
  2. Step 2: Convert to fraction form
    840,012.72/1,259,625.02 = 307,161.15/x
  3. Step 3: Cross multiply
    840,012.72x = 1,259,625.02 × 307,161.15
  4. Step 4: Simplify right side
    840,012.72x = 386,907,868,176.17
  5. Step 5: Solve for x
    x = 386,907,868,176.17/840,012.72
  6. Step 6: Final answer
    x = 460,597.63

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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.