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Finding the Fourth Proportional to 543,850.62, 815,085.81 and 307,325.76

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Solution

The fourth proportional to 543,850.62, 815,085.81 and 307,325.76 is: 460,598.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,850.62 : 815,085.81 = 307,325.76 : x
  2. Step 2: Convert to fraction form
    543,850.62/815,085.81 = 307,325.76/x
  3. Step 3: Cross multiply
    543,850.62x = 815,085.81 × 307,325.76
  4. Step 4: Simplify right side
    543,850.62x = 250,496,866,023.47
  5. Step 5: Solve for x
    x = 250,496,866,023.47/543,850.62
  6. Step 6: Final answer
    x = 460,598.66

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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.