Home / 855,424.70-1,180,749.15-493,090.74

Finding the Fourth Proportional to 855,424.70, 1,180,749.15 and 493,090.74

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Solution

The fourth proportional to 855,424.70, 1,180,749.15 and 493,090.74 is: 680,616.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,424.70 : 1,180,749.15 = 493,090.74 : x
  2. Step 2: Convert to fraction form
    855,424.70/1,180,749.15 = 493,090.74/x
  3. Step 3: Cross multiply
    855,424.70x = 1,180,749.15 × 493,090.74
  4. Step 4: Simplify right side
    855,424.70x = 582,216,472,127.87
  5. Step 5: Solve for x
    x = 582,216,472,127.87/855,424.70
  6. Step 6: Final answer
    x = 680,616.86

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1.5x scale

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.