Home / 980,411.49-1,470,853.66-340,622.11

Finding the Fourth Proportional to 980,411.49, 1,470,853.66 and 340,622.11

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Solution

The fourth proportional to 980,411.49, 1,470,853.66 and 340,622.11 is: 511,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,411.49 : 1,470,853.66 = 340,622.11 : x
  2. Step 2: Convert to fraction form
    980,411.49/1,470,853.66 = 340,622.11/x
  3. Step 3: Cross multiply
    980,411.49x = 1,470,853.66 × 340,622.11
  4. Step 4: Simplify right side
    980,411.49x = 501,005,272,641.73
  5. Step 5: Solve for x
    x = 501,005,272,641.73/980,411.49
  6. Step 6: Final answer
    x = 511,015.30

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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.