Home / 765,925.26-1,056,967.94-421,754.02

Finding the Fourth Proportional to 765,925.26, 1,056,967.94 and 421,754.02

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Solution

The fourth proportional to 765,925.26, 1,056,967.94 and 421,754.02 is: 582,015.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,925.26 : 1,056,967.94 = 421,754.02 : x
  2. Step 2: Convert to fraction form
    765,925.26/1,056,967.94 = 421,754.02/x
  3. Step 3: Cross multiply
    765,925.26x = 1,056,967.94 × 421,754.02
  4. Step 4: Simplify right side
    765,925.26x = 445,780,477,706.12
  5. Step 5: Solve for x
    x = 445,780,477,706.12/765,925.26
  6. Step 6: Final answer
    x = 582,015.64

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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.