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Finding the Fourth Proportional to 645,812.40, 968,718.60 and 567,015.60

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Solution

The fourth proportional to 645,812.40, 968,718.60 and 567,015.60 is: 850,523.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,812.40 : 968,718.60 = 567,015.60 : x
  2. Step 2: Convert to fraction form
    645,812.40/968,718.60 = 567,015.60/x
  3. Step 3: Cross multiply
    645,812.40x = 968,718.60 × 567,015.60
  4. Step 4: Simplify right side
    645,812.40x = 549,278,558,210.16
  5. Step 5: Solve for x
    x = 549,278,558,210.16/645,812.40
  6. Step 6: Final answer
    x = 850,523.40

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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.