Home / 879,288.22-1,318,930.29-577,586.80

Finding the Fourth Proportional to 879,288.22, 1,318,930.29 and 577,586.80

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Solution

The fourth proportional to 879,288.22, 1,318,930.29 and 577,586.80 is: 866,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,288.22 : 1,318,930.29 = 577,586.80 : x
  2. Step 2: Convert to fraction form
    879,288.22/1,318,930.29 = 577,586.80/x
  3. Step 3: Cross multiply
    879,288.22x = 1,318,930.29 × 577,586.80
  4. Step 4: Simplify right side
    879,288.22x = 761,796,725,624.17
  5. Step 5: Solve for x
    x = 761,796,725,624.17/879,288.22
  6. Step 6: Final answer
    x = 866,378.86

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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.