Home / 980,411.24-1,470,853.29-340,621.86

Finding the Fourth Proportional to 980,411.24, 1,470,853.29 and 340,621.86

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Solution

The fourth proportional to 980,411.24, 1,470,853.29 and 340,621.86 is: 511,014.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,411.24 : 1,470,853.29 = 340,621.86 : x
  2. Step 2: Convert to fraction form
    980,411.24/1,470,853.29 = 340,621.86/x
  3. Step 3: Cross multiply
    980,411.24x = 1,470,853.29 × 340,621.86
  4. Step 4: Simplify right side
    980,411.24x = 501,004,781,723.81
  5. Step 5: Solve for x
    x = 501,004,781,723.81/980,411.24
  6. Step 6: Final answer
    x = 511,014.93

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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.