Home / 785,363.70-1,177,699.95-311,891.70

Finding the Fourth Proportional to 785,363.70, 1,177,699.95 and 311,891.70

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Solution

The fourth proportional to 785,363.70, 1,177,699.95 and 311,891.70 is: 467,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,363.70 : 1,177,699.95 = 311,891.70 : x
  2. Step 2: Convert to fraction form
    785,363.70/1,177,699.95 = 311,891.70/x
  3. Step 3: Cross multiply
    785,363.70x = 1,177,699.95 × 311,891.70
  4. Step 4: Simplify right side
    785,363.70x = 367,314,839,495.42
  5. Step 5: Solve for x
    x = 367,314,839,495.42/785,363.70
  6. Step 6: Final answer
    x = 467,700.30

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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.