Home / 927,078.24-1,390,834.29-287,348.52

Finding the Fourth Proportional to 927,078.24, 1,390,834.29 and 287,348.52

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Solution

The fourth proportional to 927,078.24, 1,390,834.29 and 287,348.52 is: 431,090.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,078.24 : 1,390,834.29 = 287,348.52 : x
  2. Step 2: Convert to fraction form
    927,078.24/1,390,834.29 = 287,348.52/x
  3. Step 3: Cross multiply
    927,078.24x = 1,390,834.29 × 287,348.52
  4. Step 4: Simplify right side
    927,078.24x = 399,654,174,796.75
  5. Step 5: Solve for x
    x = 399,654,174,796.75/927,078.24
  6. Step 6: Final answer
    x = 431,090.02

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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.