Home / 979,929.20-1,468,338.60-647,116.40

Finding the Fourth Proportional to 979,929.20, 1,468,338.60 and 647,116.40

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Solution

The fourth proportional to 979,929.20, 1,468,338.60 and 647,116.40 is: 969,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,929.20 : 1,468,338.60 = 647,116.40 : x
  2. Step 2: Convert to fraction form
    979,929.20/1,468,338.60 = 647,116.40/x
  3. Step 3: Cross multiply
    979,929.20x = 1,468,338.60 × 647,116.40
  4. Step 4: Simplify right side
    979,929.20x = 950,185,988,813.04
  5. Step 5: Solve for x
    x = 950,185,988,813.04/979,929.20
  6. Step 6: Final answer
    x = 969,647.59

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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.