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Finding the Fourth Proportional to 1,260,580.34, 1,739,611.97 and 687,623.06

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Solution

The fourth proportional to 1,260,580.34, 1,739,611.97 and 687,623.06 is: 948,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,580.34 : 1,739,611.97 = 687,623.06 : x
  2. Step 2: Convert to fraction form
    1,260,580.34/1,739,611.97 = 687,623.06/x
  3. Step 3: Cross multiply
    1,260,580.34x = 1,739,611.97 × 687,623.06
  4. Step 4: Simplify right side
    1,260,580.34x = 1,196,197,293,887.85
  5. Step 5: Solve for x
    x = 1,196,197,293,887.85/1,260,580.34
  6. Step 6: Final answer
    x = 948,925.87

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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.