Home / 761,992.91-1,142,189.26-256,378.37

Finding the Fourth Proportional to 761,992.91, 1,142,189.26 and 256,378.37

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Solution

The fourth proportional to 761,992.91, 1,142,189.26 and 256,378.37 is: 384,298.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,992.91 : 1,142,189.26 = 256,378.37 : x
  2. Step 2: Convert to fraction form
    761,992.91/1,142,189.26 = 256,378.37/x
  3. Step 3: Cross multiply
    761,992.91x = 1,142,189.26 × 256,378.37
  4. Step 4: Simplify right side
    761,992.91x = 292,832,616,161.09
  5. Step 5: Solve for x
    x = 292,832,616,161.09/761,992.91
  6. Step 6: Final answer
    x = 384,298.35

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Double scale
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1.5x scale

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.