Home / 1,942,690.12-2,913,404.56-645,494.12

Finding the Fourth Proportional to 1,942,690.12, 2,913,404.56 and 645,494.12

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Solution

The fourth proportional to 1,942,690.12, 2,913,404.56 and 645,494.12 is: 968,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,690.12 : 2,913,404.56 = 645,494.12 : x
  2. Step 2: Convert to fraction form
    1,942,690.12/2,913,404.56 = 645,494.12/x
  3. Step 3: Cross multiply
    1,942,690.12x = 2,913,404.56 × 645,494.12
  4. Step 4: Simplify right side
    1,942,690.12x = 1,880,585,512,661.19
  5. Step 5: Solve for x
    x = 1,880,585,512,661.19/1,942,690.12
  6. Step 6: Final answer
    x = 968,031.65

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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.