Home / 689,683.36-1,033,854.10-329,760.68

Finding the Fourth Proportional to 689,683.36, 1,033,854.10 and 329,760.68

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Solution

The fourth proportional to 689,683.36, 1,033,854.10 and 329,760.68 is: 494,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,683.36 : 1,033,854.10 = 329,760.68 : x
  2. Step 2: Convert to fraction form
    689,683.36/1,033,854.10 = 329,760.68/x
  3. Step 3: Cross multiply
    689,683.36x = 1,033,854.10 × 329,760.68
  4. Step 4: Simplify right side
    689,683.36x = 340,924,431,036.79
  5. Step 5: Solve for x
    x = 340,924,431,036.79/689,683.36
  6. Step 6: Final answer
    x = 494,320.22

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1.5x scale

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.