Home / 1,881,478.20-2,820,143.70-1,040,633.40

Finding the Fourth Proportional to 1,881,478.20, 2,820,143.70 and 1,040,633.40

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Solution

The fourth proportional to 1,881,478.20, 2,820,143.70 and 1,040,633.40 is: 1,559,803.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881,478.20 : 2,820,143.70 = 1,040,633.40 : x
  2. Step 2: Convert to fraction form
    1,881,478.20/2,820,143.70 = 1,040,633.40/x
  3. Step 3: Cross multiply
    1,881,478.20x = 2,820,143.70 × 1,040,633.40
  4. Step 4: Simplify right side
    1,881,478.20x = 2,934,735,727,019.58
  5. Step 5: Solve for x
    x = 2,934,735,727,019.58/1,881,478.20
  6. Step 6: Final answer
    x = 1,559,803.21

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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.