Home / 780,817.92-1,077,529.28-423,121.92

Finding the Fourth Proportional to 780,817.92, 1,077,529.28 and 423,121.92

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Solution

The fourth proportional to 780,817.92, 1,077,529.28 and 423,121.92 is: 583,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,817.92 : 1,077,529.28 = 423,121.92 : x
  2. Step 2: Convert to fraction form
    780,817.92/1,077,529.28 = 423,121.92/x
  3. Step 3: Cross multiply
    780,817.92x = 1,077,529.28 × 423,121.92
  4. Step 4: Simplify right side
    780,817.92x = 455,926,257,809.82
  5. Step 5: Solve for x
    x = 455,926,257,809.82/780,817.92
  6. Step 6: Final answer
    x = 583,908.55

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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.