Home / 832,019.12-1,245,579.24-515,458.16

Finding the Fourth Proportional to 832,019.12, 1,245,579.24 and 515,458.16

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Solution

The fourth proportional to 832,019.12, 1,245,579.24 and 515,458.16 is: 771,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,019.12 : 1,245,579.24 = 515,458.16 : x
  2. Step 2: Convert to fraction form
    832,019.12/1,245,579.24 = 515,458.16/x
  3. Step 3: Cross multiply
    832,019.12x = 1,245,579.24 × 515,458.16
  4. Step 4: Simplify right side
    832,019.12x = 642,043,983,184.60
  5. Step 5: Solve for x
    x = 642,043,983,184.60/832,019.12
  6. Step 6: Final answer
    x = 771,669.75

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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.