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Finding the Fourth Proportional to 479,915.48, 662,411.46 and 275,988.68

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Solution

The fourth proportional to 479,915.48, 662,411.46 and 275,988.68 is: 380,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,915.48 : 662,411.46 = 275,988.68 : x
  2. Step 2: Convert to fraction form
    479,915.48/662,411.46 = 275,988.68/x
  3. Step 3: Cross multiply
    479,915.48x = 662,411.46 × 275,988.68
  4. Step 4: Simplify right side
    479,915.48x = 182,818,064,462.27
  5. Step 5: Solve for x
    x = 182,818,064,462.27/479,915.48
  6. Step 6: Final answer
    x = 380,938.04

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1.5x scale

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.