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Finding the Fourth Proportional to 568,905.38, 853,482.70 and 213,919.40

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Solution

The fourth proportional to 568,905.38, 853,482.70 and 213,919.40 is: 320,925.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,905.38 : 853,482.70 = 213,919.40 : x
  2. Step 2: Convert to fraction form
    568,905.38/853,482.70 = 213,919.40/x
  3. Step 3: Cross multiply
    568,905.38x = 853,482.70 × 213,919.40
  4. Step 4: Simplify right side
    568,905.38x = 182,576,507,094.38
  5. Step 5: Solve for x
    x = 182,576,507,094.38/568,905.38
  6. Step 6: Final answer
    x = 320,925.96

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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.