Home / 693,743.31-957,520.08-421,753.50

Finding the Fourth Proportional to 693,743.31, 957,520.08 and 421,753.50

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Solution

The fourth proportional to 693,743.31, 957,520.08 and 421,753.50 is: 582,113.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,743.31 : 957,520.08 = 421,753.50 : x
  2. Step 2: Convert to fraction form
    693,743.31/957,520.08 = 421,753.50/x
  3. Step 3: Cross multiply
    693,743.31x = 957,520.08 × 421,753.50
  4. Step 4: Simplify right side
    693,743.31x = 403,837,445,060.28
  5. Step 5: Solve for x
    x = 403,837,445,060.28/693,743.31
  6. Step 6: Final answer
    x = 582,113.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.