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Finding the Fourth Proportional to 569,109.70, 853,664.55 and 303,389.20

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Solution

The fourth proportional to 569,109.70, 853,664.55 and 303,389.20 is: 455,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,109.70 : 853,664.55 = 303,389.20 : x
  2. Step 2: Convert to fraction form
    569,109.70/853,664.55 = 303,389.20/x
  3. Step 3: Cross multiply
    569,109.70x = 853,664.55 × 303,389.20
  4. Step 4: Simplify right side
    569,109.70x = 258,992,604,892.86
  5. Step 5: Solve for x
    x = 258,992,604,892.86/569,109.70
  6. Step 6: Final answer
    x = 455,083.80

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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.