Home / 785,663.94-1,176,170.78-485,178.50

Finding the Fourth Proportional to 785,663.94, 1,176,170.78 and 485,178.50

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Solution

The fourth proportional to 785,663.94, 1,176,170.78 and 485,178.50 is: 726,331.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,663.94 : 1,176,170.78 = 485,178.50 : x
  2. Step 2: Convert to fraction form
    785,663.94/1,176,170.78 = 485,178.50/x
  3. Step 3: Cross multiply
    785,663.94x = 1,176,170.78 × 485,178.50
  4. Step 4: Simplify right side
    785,663.94x = 570,652,774,784.23
  5. Step 5: Solve for x
    x = 570,652,774,784.23/785,663.94
  6. Step 6: Final answer
    x = 726,331.89

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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.