Home / 918,903.24-1,378,355.22-287,866.08

Finding the Fourth Proportional to 918,903.24, 1,378,355.22 and 287,866.08

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Solution

The fourth proportional to 918,903.24, 1,378,355.22 and 287,866.08 is: 431,799.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,903.24 : 1,378,355.22 = 287,866.08 : x
  2. Step 2: Convert to fraction form
    918,903.24/1,378,355.22 = 287,866.08/x
  3. Step 3: Cross multiply
    918,903.24x = 1,378,355.22 × 287,866.08
  4. Step 4: Simplify right side
    918,903.24x = 396,781,714,028.94
  5. Step 5: Solve for x
    x = 396,781,714,028.94/918,903.24
  6. Step 6: Final answer
    x = 431,799.23

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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.