Home / 780,976.19-1,077,429.19-508,944.98

Finding the Fourth Proportional to 780,976.19, 1,077,429.19 and 508,944.98

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Solution

The fourth proportional to 780,976.19, 1,077,429.19 and 508,944.98 is: 702,136.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,976.19 : 1,077,429.19 = 508,944.98 : x
  2. Step 2: Convert to fraction form
    780,976.19/1,077,429.19 = 508,944.98/x
  3. Step 3: Cross multiply
    780,976.19x = 1,077,429.19 × 508,944.98
  4. Step 4: Simplify right side
    780,976.19x = 548,352,172,660.26
  5. Step 5: Solve for x
    x = 548,352,172,660.26/780,976.19
  6. Step 6: Final answer
    x = 702,136.87

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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.