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Finding the Fourth Proportional to 622,668.20, 934,002.30 and 561,650.90

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Solution

The fourth proportional to 622,668.20, 934,002.30 and 561,650.90 is: 842,476.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,668.20 : 934,002.30 = 561,650.90 : x
  2. Step 2: Convert to fraction form
    622,668.20/934,002.30 = 561,650.90/x
  3. Step 3: Cross multiply
    622,668.20x = 934,002.30 × 561,650.90
  4. Step 4: Simplify right side
    622,668.20x = 524,583,232,397.07
  5. Step 5: Solve for x
    x = 524,583,232,397.07/622,668.20
  6. Step 6: Final answer
    x = 842,476.35

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Double scale
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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.