Home / 985,641.48-1,479,823.70-681,285.87

Finding the Fourth Proportional to 985,641.48, 1,479,823.70 and 681,285.87

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Solution

The fourth proportional to 985,641.48, 1,479,823.70 and 681,285.87 is: 1,022,869.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,641.48 : 1,479,823.70 = 681,285.87 : x
  2. Step 2: Convert to fraction form
    985,641.48/1,479,823.70 = 681,285.87/x
  3. Step 3: Cross multiply
    985,641.48x = 1,479,823.70 × 681,285.87
  4. Step 4: Simplify right side
    985,641.48x = 1,008,182,973,494.69
  5. Step 5: Solve for x
    x = 1,008,182,973,494.69/985,641.48
  6. Step 6: Final answer
    x = 1,022,869.87

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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.