Home / 1,219,565.39-1,683,790.00-784,178.24

Finding the Fourth Proportional to 1,219,565.39, 1,683,790.00 and 784,178.24

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Solution

The fourth proportional to 1,219,565.39, 1,683,790.00 and 784,178.24 is: 1,082,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,565.39 : 1,683,790.00 = 784,178.24 : x
  2. Step 2: Convert to fraction form
    1,219,565.39/1,683,790.00 = 784,178.24/x
  3. Step 3: Cross multiply
    1,219,565.39x = 1,683,790.00 × 784,178.24
  4. Step 4: Simplify right side
    1,219,565.39x = 1,320,391,468,350.20
  5. Step 5: Solve for x
    x = 1,320,391,468,350.20/1,219,565.39
  6. Step 6: Final answer
    x = 1,082,673.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.