Home / 2,103,123.80-3,154,685.70-683,323.40

Finding the Fourth Proportional to 2,103,123.80, 3,154,685.70 and 683,323.40

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Solution

The fourth proportional to 2,103,123.80, 3,154,685.70 and 683,323.40 is: 1,024,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103,123.80 : 3,154,685.70 = 683,323.40 : x
  2. Step 2: Convert to fraction form
    2,103,123.80/3,154,685.70 = 683,323.40/x
  3. Step 3: Cross multiply
    2,103,123.80x = 3,154,685.70 × 683,323.40
  4. Step 4: Simplify right side
    2,103,123.80x = 2,155,670,558,455.38
  5. Step 5: Solve for x
    x = 2,155,670,558,455.38/2,103,123.80
  6. Step 6: Final answer
    x = 1,024,985.10

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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.