Home / 761,510.22-1,050,881.90-421,978.47

Finding the Fourth Proportional to 761,510.22, 1,050,881.90 and 421,978.47

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Solution

The fourth proportional to 761,510.22, 1,050,881.90 and 421,978.47 is: 582,329.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,510.22 : 1,050,881.90 = 421,978.47 : x
  2. Step 2: Convert to fraction form
    761,510.22/1,050,881.90 = 421,978.47/x
  3. Step 3: Cross multiply
    761,510.22x = 1,050,881.90 × 421,978.47
  4. Step 4: Simplify right side
    761,510.22x = 443,449,534,202.80
  5. Step 5: Solve for x
    x = 443,449,534,202.80/761,510.22
  6. Step 6: Final answer
    x = 582,329.06

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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.