Home / 1,159,579.40-1,600,232.76-643,342.91

Finding the Fourth Proportional to 1,159,579.40, 1,600,232.76 and 643,342.91

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Solution

The fourth proportional to 1,159,579.40, 1,600,232.76 and 643,342.91 is: 887,820.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,579.40 : 1,600,232.76 = 643,342.91 : x
  2. Step 2: Convert to fraction form
    1,159,579.40/1,600,232.76 = 643,342.91/x
  3. Step 3: Cross multiply
    1,159,579.40x = 1,600,232.76 × 643,342.91
  4. Step 4: Simplify right side
    1,159,579.40x = 1,029,498,392,494.57
  5. Step 5: Solve for x
    x = 1,029,498,392,494.57/1,159,579.40
  6. Step 6: Final answer
    x = 887,820.53

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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.