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Finding the Fourth Proportional to 1,348,754.02, 1,861,541.13 and 865,929.22

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Solution

The fourth proportional to 1,348,754.02, 1,861,541.13 and 865,929.22 is: 1,195,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,754.02 : 1,861,541.13 = 865,929.22 : x
  2. Step 2: Convert to fraction form
    1,348,754.02/1,861,541.13 = 865,929.22/x
  3. Step 3: Cross multiply
    1,348,754.02x = 1,861,541.13 × 865,929.22
  4. Step 4: Simplify right side
    1,348,754.02x = 1,611,962,858,698.82
  5. Step 5: Solve for x
    x = 1,611,962,858,698.82/1,348,754.02
  6. Step 6: Final answer
    x = 1,195,149.62

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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.