Home / 979,812.20-1,468,163.10-646,999.40

Finding the Fourth Proportional to 979,812.20, 1,468,163.10 and 646,999.40

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Solution

The fourth proportional to 979,812.20, 1,468,163.10 and 646,999.40 is: 969,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,812.20 : 1,468,163.10 = 646,999.40 : x
  2. Step 2: Convert to fraction form
    979,812.20/1,468,163.10 = 646,999.40/x
  3. Step 3: Cross multiply
    979,812.20x = 1,468,163.10 × 646,999.40
  4. Step 4: Simplify right side
    979,812.20x = 949,900,644,802.14
  5. Step 5: Solve for x
    x = 949,900,644,802.14/979,812.20
  6. Step 6: Final answer
    x = 969,472.15

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1.5x scale

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.