Home / 927,072.23-1,390,825.31-287,342.52

Finding the Fourth Proportional to 927,072.23, 1,390,825.31 and 287,342.52

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Solution

The fourth proportional to 927,072.23, 1,390,825.31 and 287,342.52 is: 431,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,072.23 : 1,390,825.31 = 287,342.52 : x
  2. Step 2: Convert to fraction form
    927,072.23/1,390,825.31 = 287,342.52/x
  3. Step 3: Cross multiply
    927,072.23x = 1,390,825.31 × 287,342.52
  4. Step 4: Simplify right side
    927,072.23x = 399,643,248,018.47
  5. Step 5: Solve for x
    x = 399,643,248,018.47/927,072.23
  6. Step 6: Final answer
    x = 431,081.03

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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.