Home / 851,568.65-1,275,907.01-513,899.76

Finding the Fourth Proportional to 851,568.65, 1,275,907.01 and 513,899.76

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Solution

The fourth proportional to 851,568.65, 1,275,907.01 and 513,899.76 is: 769,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,568.65 : 1,275,907.01 = 513,899.76 : x
  2. Step 2: Convert to fraction form
    851,568.65/1,275,907.01 = 513,899.76/x
  3. Step 3: Cross multiply
    851,568.65x = 1,275,907.01 × 513,899.76
  4. Step 4: Simplify right side
    851,568.65x = 655,688,308,436.47
  5. Step 5: Solve for x
    x = 655,688,308,436.47/851,568.65
  6. Step 6: Final answer
    x = 769,977.04

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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.