Home / 3,120,411.80-4,680,617.70-1,322,989.40

Finding the Fourth Proportional to 3,120,411.80, 4,680,617.70 and 1,322,989.40

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Solution

The fourth proportional to 3,120,411.80, 4,680,617.70 and 1,322,989.40 is: 1,984,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,411.80 : 4,680,617.70 = 1,322,989.40 : x
  2. Step 2: Convert to fraction form
    3,120,411.80/4,680,617.70 = 1,322,989.40/x
  3. Step 3: Cross multiply
    3,120,411.80x = 4,680,617.70 × 1,322,989.40
  4. Step 4: Simplify right side
    3,120,411.80x = 6,192,407,602,552.38
  5. Step 5: Solve for x
    x = 6,192,407,602,552.38/3,120,411.80
  6. Step 6: Final answer
    x = 1,984,484.10

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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.