Home / 1,435,579.07-1,981,238.72-1,072,372.35

Finding the Fourth Proportional to 1,435,579.07, 1,981,238.72 and 1,072,372.35

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Solution

The fourth proportional to 1,435,579.07, 1,981,238.72 and 1,072,372.35 is: 1,479,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,579.07 : 1,981,238.72 = 1,072,372.35 : x
  2. Step 2: Convert to fraction form
    1,435,579.07/1,981,238.72 = 1,072,372.35/x
  3. Step 3: Cross multiply
    1,435,579.07x = 1,981,238.72 × 1,072,372.35
  4. Step 4: Simplify right side
    1,435,579.07x = 2,124,625,624,145.18
  5. Step 5: Solve for x
    x = 2,124,625,624,145.18/1,435,579.07
  6. Step 6: Final answer
    x = 1,479,978.13

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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.