Home / 770,915.55-1,154,689.25-320,270.07

Finding the Fourth Proportional to 770,915.55, 1,154,689.25 and 320,270.07

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Solution

The fourth proportional to 770,915.55, 1,154,689.25 and 320,270.07 is: 479,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,915.55 : 1,154,689.25 = 320,270.07 : x
  2. Step 2: Convert to fraction form
    770,915.55/1,154,689.25 = 320,270.07/x
  3. Step 3: Cross multiply
    770,915.55x = 1,154,689.25 × 320,270.07
  4. Step 4: Simplify right side
    770,915.55x = 369,812,405,324.40
  5. Step 5: Solve for x
    x = 369,812,405,324.40/770,915.55
  6. Step 6: Final answer
    x = 479,705.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.