Home / 642,051.30-963,470.61-287,365.26

Finding the Fourth Proportional to 642,051.30, 963,470.61 and 287,365.26

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Solution

The fourth proportional to 642,051.30, 963,470.61 and 287,365.26 is: 431,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,051.30 : 963,470.61 = 287,365.26 : x
  2. Step 2: Convert to fraction form
    642,051.30/963,470.61 = 287,365.26/x
  3. Step 3: Cross multiply
    642,051.30x = 963,470.61 × 287,365.26
  4. Step 4: Simplify right side
    642,051.30x = 276,867,982,345.01
  5. Step 5: Solve for x
    x = 276,867,982,345.01/642,051.30
  6. Step 6: Final answer
    x = 431,224.08

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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.