Home / 1,238,589.60-1,709,411.84-729,339.36

Finding the Fourth Proportional to 1,238,589.60, 1,709,411.84 and 729,339.36

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Solution

The fourth proportional to 1,238,589.60, 1,709,411.84 and 729,339.36 is: 1,006,581.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,589.60 : 1,709,411.84 = 729,339.36 : x
  2. Step 2: Convert to fraction form
    1,238,589.60/1,709,411.84 = 729,339.36/x
  3. Step 3: Cross multiply
    1,238,589.60x = 1,709,411.84 × 729,339.36
  4. Step 4: Simplify right side
    1,238,589.60x = 1,246,741,337,362.02
  5. Step 5: Solve for x
    x = 1,246,741,337,362.02/1,238,589.60
  6. Step 6: Final answer
    x = 1,006,581.47

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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.