Home / 1,243,000.40-1,855,390.42-1,151,711.24

Finding the Fourth Proportional to 1,243,000.40, 1,855,390.42 and 1,151,711.24

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Solution

The fourth proportional to 1,243,000.40, 1,855,390.42 and 1,151,711.24 is: 1,719,125.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,000.40 : 1,855,390.42 = 1,151,711.24 : x
  2. Step 2: Convert to fraction form
    1,243,000.40/1,855,390.42 = 1,151,711.24/x
  3. Step 3: Cross multiply
    1,243,000.40x = 1,855,390.42 × 1,151,711.24
  4. Step 4: Simplify right side
    1,243,000.40x = 2,136,874,001,302.32
  5. Step 5: Solve for x
    x = 2,136,874,001,302.32/1,243,000.40
  6. Step 6: Final answer
    x = 1,719,125.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.