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Finding the Fourth Proportional to 647,084.20, 970,626.30 and 607,718.20

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Solution

The fourth proportional to 647,084.20, 970,626.30 and 607,718.20 is: 911,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,084.20 : 970,626.30 = 607,718.20 : x
  2. Step 2: Convert to fraction form
    647,084.20/970,626.30 = 607,718.20/x
  3. Step 3: Cross multiply
    647,084.20x = 970,626.30 × 607,718.20
  4. Step 4: Simplify right side
    647,084.20x = 589,867,267,908.66
  5. Step 5: Solve for x
    x = 589,867,267,908.66/647,084.20
  6. Step 6: Final answer
    x = 911,577.30

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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.