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Finding the Fourth Proportional to 523,779.75, 722,792.72 and 306,008.62

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Solution

The fourth proportional to 523,779.75, 722,792.72 and 306,008.62 is: 422,278.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,779.75 : 722,792.72 = 306,008.62 : x
  2. Step 2: Convert to fraction form
    523,779.75/722,792.72 = 306,008.62/x
  3. Step 3: Cross multiply
    523,779.75x = 722,792.72 × 306,008.62
  4. Step 4: Simplify right side
    523,779.75x = 221,180,801,751.29
  5. Step 5: Solve for x
    x = 221,180,801,751.29/523,779.75
  6. Step 6: Final answer
    x = 422,278.26

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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.