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Finding the Fourth Proportional to 647,044.20, 970,566.30 and 607,678.20

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Solution

The fourth proportional to 647,044.20, 970,566.30 and 607,678.20 is: 911,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,044.20 : 970,566.30 = 607,678.20 : x
  2. Step 2: Convert to fraction form
    647,044.20/970,566.30 = 607,678.20/x
  3. Step 3: Cross multiply
    647,044.20x = 970,566.30 × 607,678.20
  4. Step 4: Simplify right side
    647,044.20x = 589,791,982,164.66
  5. Step 5: Solve for x
    x = 589,791,982,164.66/647,044.20
  6. Step 6: Final answer
    x = 911,517.30

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Double scale
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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.