Home / 705,125.48-1,055,349.30-642,091.28

Finding the Fourth Proportional to 705,125.48, 1,055,349.30 and 642,091.28

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Solution

The fourth proportional to 705,125.48, 1,055,349.30 and 642,091.28 is: 961,007.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,125.48 : 1,055,349.30 = 642,091.28 : x
  2. Step 2: Convert to fraction form
    705,125.48/1,055,349.30 = 642,091.28/x
  3. Step 3: Cross multiply
    705,125.48x = 1,055,349.30 × 642,091.28
  4. Step 4: Simplify right side
    705,125.48x = 677,630,582,884.10
  5. Step 5: Solve for x
    x = 677,630,582,884.10/705,125.48
  6. Step 6: Final answer
    x = 961,007.09

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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.