Home / 886,729.71-1,330,281.38-287,644.10

Finding the Fourth Proportional to 886,729.71, 1,330,281.38 and 287,644.10

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Solution

The fourth proportional to 886,729.71, 1,330,281.38 and 287,644.10 is: 431,526.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,729.71 : 1,330,281.38 = 287,644.10 : x
  2. Step 2: Convert to fraction form
    886,729.71/1,330,281.38 = 287,644.10/x
  3. Step 3: Cross multiply
    886,729.71x = 1,330,281.38 × 287,644.10
  4. Step 4: Simplify right side
    886,729.71x = 382,647,582,746.56
  5. Step 5: Solve for x
    x = 382,647,582,746.56/886,729.71
  6. Step 6: Final answer
    x = 431,526.74

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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.