Home / 813,184.80-1,218,902.40-307,550.40

Finding the Fourth Proportional to 813,184.80, 1,218,902.40 and 307,550.40

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Solution

The fourth proportional to 813,184.80, 1,218,902.40 and 307,550.40 is: 460,994.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,184.80 : 1,218,902.40 = 307,550.40 : x
  2. Step 2: Convert to fraction form
    813,184.80/1,218,902.40 = 307,550.40/x
  3. Step 3: Cross multiply
    813,184.80x = 1,218,902.40 × 307,550.40
  4. Step 4: Simplify right side
    813,184.80x = 374,873,920,680.96
  5. Step 5: Solve for x
    x = 374,873,920,680.96/813,184.80
  6. Step 6: Final answer
    x = 460,994.75

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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.