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Finding the Fourth Proportional to 488,717.38, 736,405.67 and 401,915.35

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Solution

The fourth proportional to 488,717.38, 736,405.67 and 401,915.35 is: 605,611.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,717.38 : 736,405.67 = 401,915.35 : x
  2. Step 2: Convert to fraction form
    488,717.38/736,405.67 = 401,915.35/x
  3. Step 3: Cross multiply
    488,717.38x = 736,405.67 × 401,915.35
  4. Step 4: Simplify right side
    488,717.38x = 295,972,742,600.04
  5. Step 5: Solve for x
    x = 295,972,742,600.04/488,717.38
  6. Step 6: Final answer
    x = 605,611.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.