Home / 1,310,120.46-1,964,011.95-511,216.20

Finding the Fourth Proportional to 1,310,120.46, 1,964,011.95 and 511,216.20

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Solution

The fourth proportional to 1,310,120.46, 1,964,011.95 and 511,216.20 is: 766,368.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,120.46 : 1,964,011.95 = 511,216.20 : x
  2. Step 2: Convert to fraction form
    1,310,120.46/1,964,011.95 = 511,216.20/x
  3. Step 3: Cross multiply
    1,310,120.46x = 1,964,011.95 × 511,216.20
  4. Step 4: Simplify right side
    1,310,120.46x = 1,004,034,725,833.59
  5. Step 5: Solve for x
    x = 1,004,034,725,833.59/1,310,120.46
  6. Step 6: Final answer
    x = 766,368.25

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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.