Home / 768,280.44-1,059,784.65-445,949.04

Finding the Fourth Proportional to 768,280.44, 1,059,784.65 and 445,949.04

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Solution

The fourth proportional to 768,280.44, 1,059,784.65 and 445,949.04 is: 615,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,280.44 : 1,059,784.65 = 445,949.04 : x
  2. Step 2: Convert to fraction form
    768,280.44/1,059,784.65 = 445,949.04/x
  3. Step 3: Cross multiply
    768,280.44x = 1,059,784.65 × 445,949.04
  4. Step 4: Simplify right side
    768,280.44x = 472,609,947,274.24
  5. Step 5: Solve for x
    x = 472,609,947,274.24/768,280.44
  6. Step 6: Final answer
    x = 615,152.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.