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Finding the Fourth Proportional to 645,844.32, 968,922 and 202,612.32

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Solution

The fourth proportional to 645,844.32, 968,922 and 202,612.32 is: 303,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,844.32 : 968,922 = 202,612.32 : x
  2. Step 2: Convert to fraction form
    645,844.32/968,922 = 202,612.32/x
  3. Step 3: Cross multiply
    645,844.32x = 968,922 × 202,612.32
  4. Step 4: Simplify right side
    645,844.32x = 196,315,534,319.04
  5. Step 5: Solve for x
    x = 196,315,534,319.04/645,844.32
  6. Step 6: Final answer
    x = 303,967.27

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Similar ratio
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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.