Home / 1,260,420.19-1,739,400.59-687,460.37

Finding the Fourth Proportional to 1,260,420.19, 1,739,400.59 and 687,460.37

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Solution

The fourth proportional to 1,260,420.19, 1,739,400.59 and 687,460.37 is: 948,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,420.19 : 1,739,400.59 = 687,460.37 : x
  2. Step 2: Convert to fraction form
    1,260,420.19/1,739,400.59 = 687,460.37/x
  3. Step 3: Cross multiply
    1,260,420.19x = 1,739,400.59 × 687,460.37
  4. Step 4: Simplify right side
    1,260,420.19x = 1,195,768,966,201.27
  5. Step 5: Solve for x
    x = 1,195,768,966,201.27/1,260,420.19
  6. Step 6: Final answer
    x = 948,706.61

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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.