Home / 693,617.18-957,486.02-421,771.46

Finding the Fourth Proportional to 693,617.18, 957,486.02 and 421,771.46

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Solution

The fourth proportional to 693,617.18, 957,486.02 and 421,771.46 is: 582,223.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,617.18 : 957,486.02 = 421,771.46 : x
  2. Step 2: Convert to fraction form
    693,617.18/957,486.02 = 421,771.46/x
  3. Step 3: Cross multiply
    693,617.18x = 957,486.02 × 421,771.46
  4. Step 4: Simplify right side
    693,617.18x = 403,840,269,688.70
  5. Step 5: Solve for x
    x = 403,840,269,688.70/693,617.18
  6. Step 6: Final answer
    x = 582,223.57

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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.