Home / 807,112.80-1,210,208.40-333,237.60

Finding the Fourth Proportional to 807,112.80, 1,210,208.40 and 333,237.60

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Solution

The fourth proportional to 807,112.80, 1,210,208.40 and 333,237.60 is: 499,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,112.80 : 1,210,208.40 = 333,237.60 : x
  2. Step 2: Convert to fraction form
    807,112.80/1,210,208.40 = 333,237.60/x
  3. Step 3: Cross multiply
    807,112.80x = 1,210,208.40 × 333,237.60
  4. Step 4: Simplify right side
    807,112.80x = 403,286,942,715.84
  5. Step 5: Solve for x
    x = 403,286,942,715.84/807,112.80
  6. Step 6: Final answer
    x = 499,666.15

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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.