Home / 689,674-1,032,869.40-351,884.56

Finding the Fourth Proportional to 689,674, 1,032,869.40 and 351,884.56

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Solution

The fourth proportional to 689,674, 1,032,869.40 and 351,884.56 is: 526,989.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,674 : 1,032,869.40 = 351,884.56 : x
  2. Step 2: Convert to fraction form
    689,674/1,032,869.40 = 351,884.56/x
  3. Step 3: Cross multiply
    689,674x = 1,032,869.40 × 351,884.56
  4. Step 4: Simplify right side
    689,674x = 363,450,794,356.46
  5. Step 5: Solve for x
    x = 363,450,794,356.46/689,674
  6. Step 6: Final answer
    x = 526,989.27

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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.