Home / 869,629.92-1,200,070.56-487,648.32

Finding the Fourth Proportional to 869,629.92, 1,200,070.56 and 487,648.32

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Solution

The fourth proportional to 869,629.92, 1,200,070.56 and 487,648.32 is: 672,944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,629.92 : 1,200,070.56 = 487,648.32 : x
  2. Step 2: Convert to fraction form
    869,629.92/1,200,070.56 = 487,648.32/x
  3. Step 3: Cross multiply
    869,629.92x = 1,200,070.56 × 487,648.32
  4. Step 4: Simplify right side
    869,629.92x = 585,212,392,465.46
  5. Step 5: Solve for x
    x = 585,212,392,465.46/869,629.92
  6. Step 6: Final answer
    x = 672,944.18

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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.