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Finding the Fourth Proportional to 609,748.60, 914,622.90 and 525,767.80

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Solution

The fourth proportional to 609,748.60, 914,622.90 and 525,767.80 is: 788,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,748.60 : 914,622.90 = 525,767.80 : x
  2. Step 2: Convert to fraction form
    609,748.60/914,622.90 = 525,767.80/x
  3. Step 3: Cross multiply
    609,748.60x = 914,622.90 × 525,767.80
  4. Step 4: Simplify right side
    609,748.60x = 480,879,269,962.62
  5. Step 5: Solve for x
    x = 480,879,269,962.62/609,748.60
  6. Step 6: Final answer
    x = 788,651.70

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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.