Home / 2,103,145.80-3,154,718.70-683,345.40

Finding the Fourth Proportional to 2,103,145.80, 3,154,718.70 and 683,345.40

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Solution

The fourth proportional to 2,103,145.80, 3,154,718.70 and 683,345.40 is: 1,025,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103,145.80 : 3,154,718.70 = 683,345.40 : x
  2. Step 2: Convert to fraction form
    2,103,145.80/3,154,718.70 = 683,345.40/x
  3. Step 3: Cross multiply
    2,103,145.80x = 3,154,718.70 × 683,345.40
  4. Step 4: Simplify right side
    2,103,145.80x = 2,155,762,511,938.98
  5. Step 5: Solve for x
    x = 2,155,762,511,938.98/2,103,145.80
  6. Step 6: Final answer
    x = 1,025,018.10

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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.