Home / 1,269,970.53-1,904,022.68-638,248.29

Finding the Fourth Proportional to 1,269,970.53, 1,904,022.68 and 638,248.29

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Solution

The fourth proportional to 1,269,970.53, 1,904,022.68 and 638,248.29 is: 956,903.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,970.53 : 1,904,022.68 = 638,248.29 : x
  2. Step 2: Convert to fraction form
    1,269,970.53/1,904,022.68 = 638,248.29/x
  3. Step 3: Cross multiply
    1,269,970.53x = 1,904,022.68 × 638,248.29
  4. Step 4: Simplify right side
    1,269,970.53x = 1,215,239,216,439.98
  5. Step 5: Solve for x
    x = 1,215,239,216,439.98/1,269,970.53
  6. Step 6: Final answer
    x = 956,903.48

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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.