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Finding the Fourth Proportional to 664,721.04, 917,310.33 and 362,915.04

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Solution

The fourth proportional to 664,721.04, 917,310.33 and 362,915.04 is: 500,820.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,721.04 : 917,310.33 = 362,915.04 : x
  2. Step 2: Convert to fraction form
    664,721.04/917,310.33 = 362,915.04/x
  3. Step 3: Cross multiply
    664,721.04x = 917,310.33 × 362,915.04
  4. Step 4: Simplify right side
    664,721.04x = 332,905,715,104.36
  5. Step 5: Solve for x
    x = 332,905,715,104.36/664,721.04
  6. Step 6: Final answer
    x = 500,820.19

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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.