Home / 689,746.69-1,034,663.73-216,450.73

Finding the Fourth Proportional to 689,746.69, 1,034,663.73 and 216,450.73

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Solution

The fourth proportional to 689,746.69, 1,034,663.73 and 216,450.73 is: 324,689.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,746.69 : 1,034,663.73 = 216,450.73 : x
  2. Step 2: Convert to fraction form
    689,746.69/1,034,663.73 = 216,450.73/x
  3. Step 3: Cross multiply
    689,746.69x = 1,034,663.73 × 216,450.73
  4. Step 4: Simplify right side
    689,746.69x = 223,953,719,663.02
  5. Step 5: Solve for x
    x = 223,953,719,663.02/689,746.69
  6. Step 6: Final answer
    x = 324,689.81

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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.