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Finding the Fourth Proportional to 662,082.60, 993,642.30 and 307,140.60

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Solution

The fourth proportional to 662,082.60, 993,642.30 and 307,140.60 is: 460,951.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,082.60 : 993,642.30 = 307,140.60 : x
  2. Step 2: Convert to fraction form
    662,082.60/993,642.30 = 307,140.60/x
  3. Step 3: Cross multiply
    662,082.60x = 993,642.30 × 307,140.60
  4. Step 4: Simplify right side
    662,082.60x = 305,187,892,207.38
  5. Step 5: Solve for x
    x = 305,187,892,207.38/662,082.60
  6. Step 6: Final answer
    x = 460,951.39

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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.