Home / 791,359.95-1,187,206.02-258,839.40

Finding the Fourth Proportional to 791,359.95, 1,187,206.02 and 258,839.40

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Solution

The fourth proportional to 791,359.95, 1,187,206.02 and 258,839.40 is: 388,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,359.95 : 1,187,206.02 = 258,839.40 : x
  2. Step 2: Convert to fraction form
    791,359.95/1,187,206.02 = 258,839.40/x
  3. Step 3: Cross multiply
    791,359.95x = 1,187,206.02 × 258,839.40
  4. Step 4: Simplify right side
    791,359.95x = 307,295,693,893.19
  5. Step 5: Solve for x
    x = 307,295,693,893.19/791,359.95
  6. Step 6: Final answer
    x = 388,313.43

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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.