Home / 927,663.52-1,391,693.88-287,953.21

Finding the Fourth Proportional to 927,663.52, 1,391,693.88 and 287,953.21

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Solution

The fourth proportional to 927,663.52, 1,391,693.88 and 287,953.21 is: 431,991.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,663.52 : 1,391,693.88 = 287,953.21 : x
  2. Step 2: Convert to fraction form
    927,663.52/1,391,693.88 = 287,953.21/x
  3. Step 3: Cross multiply
    927,663.52x = 1,391,693.88 × 287,953.21
  4. Step 4: Simplify right side
    927,663.52x = 400,742,720,083.36
  5. Step 5: Solve for x
    x = 400,742,720,083.36/927,663.52
  6. Step 6: Final answer
    x = 431,991.46

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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.