Home / 709,374.49-1,064,031.93-330,164.78

Finding the Fourth Proportional to 709,374.49, 1,064,031.93 and 330,164.78

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Solution

The fourth proportional to 709,374.49, 1,064,031.93 and 330,164.78 is: 495,233.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,374.49 : 1,064,031.93 = 330,164.78 : x
  2. Step 2: Convert to fraction form
    709,374.49/1,064,031.93 = 330,164.78/x
  3. Step 3: Cross multiply
    709,374.49x = 1,064,031.93 × 330,164.78
  4. Step 4: Simplify right side
    709,374.49x = 351,305,868,081.43
  5. Step 5: Solve for x
    x = 351,305,868,081.43/709,374.49
  6. Step 6: Final answer
    x = 495,233.30

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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.