Home / 709,373.49-1,064,030.43-330,163.78

Finding the Fourth Proportional to 709,373.49, 1,064,030.43 and 330,163.78

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Solution

The fourth proportional to 709,373.49, 1,064,030.43 and 330,163.78 is: 495,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,373.49 : 1,064,030.43 = 330,163.78 : x
  2. Step 2: Convert to fraction form
    709,373.49/1,064,030.43 = 330,163.78/x
  3. Step 3: Cross multiply
    709,373.49x = 1,064,030.43 × 330,163.78
  4. Step 4: Simplify right side
    709,373.49x = 351,304,308,803.83
  5. Step 5: Solve for x
    x = 351,304,308,803.83/709,373.49
  6. Step 6: Final answer
    x = 495,231.80

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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.