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Finding the Fourth Proportional to 504,442.96, 696,079.56 and 289,531.60

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Solution

The fourth proportional to 504,442.96, 696,079.56 and 289,531.60 is: 399,523.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,442.96 : 696,079.56 = 289,531.60 : x
  2. Step 2: Convert to fraction form
    504,442.96/696,079.56 = 289,531.60/x
  3. Step 3: Cross multiply
    504,442.96x = 696,079.56 × 289,531.60
  4. Step 4: Simplify right side
    504,442.96x = 201,537,028,734.10
  5. Step 5: Solve for x
    x = 201,537,028,734.10/504,442.96
  6. Step 6: Final answer
    x = 399,523.92

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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.