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Finding the Fourth Proportional to 645,957.32, 968,610.15 and 376,172.64

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Solution

The fourth proportional to 645,957.32, 968,610.15 and 376,172.64 is: 564,069.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,957.32 : 968,610.15 = 376,172.64 : x
  2. Step 2: Convert to fraction form
    645,957.32/968,610.15 = 376,172.64/x
  3. Step 3: Cross multiply
    645,957.32x = 968,610.15 × 376,172.64
  4. Step 4: Simplify right side
    645,957.32x = 364,364,637,256.30
  5. Step 5: Solve for x
    x = 364,364,637,256.30/645,957.32
  6. Step 6: Final answer
    x = 564,069.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.