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Finding the Fourth Proportional to 595,015.14, 820,918.12 and 380,279.10

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Solution

The fourth proportional to 595,015.14, 820,918.12 and 380,279.10 is: 524,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,015.14 : 820,918.12 = 380,279.10 : x
  2. Step 2: Convert to fraction form
    595,015.14/820,918.12 = 380,279.10/x
  3. Step 3: Cross multiply
    595,015.14x = 820,918.12 × 380,279.10
  4. Step 4: Simplify right side
    595,015.14x = 312,178,003,847.29
  5. Step 5: Solve for x
    x = 312,178,003,847.29/595,015.14
  6. Step 6: Final answer
    x = 524,655.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.