Home / 1,276,508.92-1,914,763.38-390,037.24

Finding the Fourth Proportional to 1,276,508.92, 1,914,763.38 and 390,037.24

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Solution

The fourth proportional to 1,276,508.92, 1,914,763.38 and 390,037.24 is: 585,055.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,508.92 : 1,914,763.38 = 390,037.24 : x
  2. Step 2: Convert to fraction form
    1,276,508.92/1,914,763.38 = 390,037.24/x
  3. Step 3: Cross multiply
    1,276,508.92x = 1,914,763.38 × 390,037.24
  4. Step 4: Simplify right side
    1,276,508.92x = 746,829,023,988.27
  5. Step 5: Solve for x
    x = 746,829,023,988.27/1,276,508.92
  6. Step 6: Final answer
    x = 585,055.86

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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.