Home / 849,643.89-1,274,491.40-209,947.59

Finding the Fourth Proportional to 849,643.89, 1,274,491.40 and 209,947.59

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Solution

The fourth proportional to 849,643.89, 1,274,491.40 and 209,947.59 is: 314,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,643.89 : 1,274,491.40 = 209,947.59 : x
  2. Step 2: Convert to fraction form
    849,643.89/1,274,491.40 = 209,947.59/x
  3. Step 3: Cross multiply
    849,643.89x = 1,274,491.40 × 209,947.59
  4. Step 4: Simplify right side
    849,643.89x = 267,576,397,905.73
  5. Step 5: Solve for x
    x = 267,576,397,905.73/849,643.89
  6. Step 6: Final answer
    x = 314,927.70

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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.