Home / 761,489.34-1,050,861.51-421,963.26

Finding the Fourth Proportional to 761,489.34, 1,050,861.51 and 421,963.26

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Solution

The fourth proportional to 761,489.34, 1,050,861.51 and 421,963.26 is: 582,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,489.34 : 1,050,861.51 = 421,963.26 : x
  2. Step 2: Convert to fraction form
    761,489.34/1,050,861.51 = 421,963.26/x
  3. Step 3: Cross multiply
    761,489.34x = 1,050,861.51 × 421,963.26
  4. Step 4: Simplify right side
    761,489.34x = 443,424,948,568.12
  5. Step 5: Solve for x
    x = 443,424,948,568.12/761,489.34
  6. Step 6: Final answer
    x = 582,312.75

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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.