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Finding the Fourth Proportional to 651,611.16, 899,247.72 and 365,120.64

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Solution

The fourth proportional to 651,611.16, 899,247.72 and 365,120.64 is: 503,880.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,611.16 : 899,247.72 = 365,120.64 : x
  2. Step 2: Convert to fraction form
    651,611.16/899,247.72 = 365,120.64/x
  3. Step 3: Cross multiply
    651,611.16x = 899,247.72 × 365,120.64
  4. Step 4: Simplify right side
    651,611.16x = 328,333,903,044.94
  5. Step 5: Solve for x
    x = 328,333,903,044.94/651,611.16
  6. Step 6: Final answer
    x = 503,880.11

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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.