Home / 942,539.32-1,413,273.66-643,382.20

Finding the Fourth Proportional to 942,539.32, 1,413,273.66 and 643,382.20

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Solution

The fourth proportional to 942,539.32, 1,413,273.66 and 643,382.20 is: 964,707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,539.32 : 1,413,273.66 = 643,382.20 : x
  2. Step 2: Convert to fraction form
    942,539.32/1,413,273.66 = 643,382.20/x
  3. Step 3: Cross multiply
    942,539.32x = 1,413,273.66 × 643,382.20
  4. Step 4: Simplify right side
    942,539.32x = 909,275,116,572.85
  5. Step 5: Solve for x
    x = 909,275,116,572.85/942,539.32
  6. Step 6: Final answer
    x = 964,707.89

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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.