Home / 840,013.22-1,259,625.76-307,161.66

Finding the Fourth Proportional to 840,013.22, 1,259,625.76 and 307,161.66

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Solution

The fourth proportional to 840,013.22, 1,259,625.76 and 307,161.66 is: 460,598.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,013.22 : 1,259,625.76 = 307,161.66 : x
  2. Step 2: Convert to fraction form
    840,013.22/1,259,625.76 = 307,161.66/x
  3. Step 3: Cross multiply
    840,013.22x = 1,259,625.76 × 307,161.66
  4. Step 4: Simplify right side
    840,013.22x = 386,908,739,420.36
  5. Step 5: Solve for x
    x = 386,908,739,420.36/840,013.22
  6. Step 6: Final answer
    x = 460,598.39

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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.