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Finding the Fourth Proportional to 489,274.20, 733,911.30 and 410,542.20

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Solution

The fourth proportional to 489,274.20, 733,911.30 and 410,542.20 is: 615,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,274.20 : 733,911.30 = 410,542.20 : x
  2. Step 2: Convert to fraction form
    489,274.20/733,911.30 = 410,542.20/x
  3. Step 3: Cross multiply
    489,274.20x = 733,911.30 × 410,542.20
  4. Step 4: Simplify right side
    489,274.20x = 301,301,559,706.86
  5. Step 5: Solve for x
    x = 301,301,559,706.86/489,274.20
  6. Step 6: Final answer
    x = 615,813.30

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Half scale
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Double scale
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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.