Home / 693,721.52-957,490.02-421,731.75

Finding the Fourth Proportional to 693,721.52, 957,490.02 and 421,731.75

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Solution

The fourth proportional to 693,721.52, 957,490.02 and 421,731.75 is: 582,083.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,721.52 : 957,490.02 = 421,731.75 : x
  2. Step 2: Convert to fraction form
    693,721.52/957,490.02 = 421,731.75/x
  3. Step 3: Cross multiply
    693,721.52x = 957,490.02 × 421,731.75
  4. Step 4: Simplify right side
    693,721.52x = 403,803,941,742.14
  5. Step 5: Solve for x
    x = 403,803,941,742.14/693,721.52
  6. Step 6: Final answer
    x = 582,083.64

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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.