Home / 996,949.20-1,495,618.20-428,329.20

Finding the Fourth Proportional to 996,949.20, 1,495,618.20 and 428,329.20

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Solution

The fourth proportional to 996,949.20, 1,495,618.20 and 428,329.20 is: 642,577.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,949.20 : 1,495,618.20 = 428,329.20 : x
  2. Step 2: Convert to fraction form
    996,949.20/1,495,618.20 = 428,329.20/x
  3. Step 3: Cross multiply
    996,949.20x = 1,495,618.20 × 428,329.20
  4. Step 4: Simplify right side
    996,949.20x = 640,616,947,111.44
  5. Step 5: Solve for x
    x = 640,616,947,111.44/996,949.20
  6. Step 6: Final answer
    x = 642,577.32

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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.