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Finding the Fourth Proportional to 630,958.80, 946,588.86 and 210,238.32

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Solution

The fourth proportional to 630,958.80, 946,588.86 and 210,238.32 is: 315,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,958.80 : 946,588.86 = 210,238.32 : x
  2. Step 2: Convert to fraction form
    630,958.80/946,588.86 = 210,238.32/x
  3. Step 3: Cross multiply
    630,958.80x = 946,588.86 × 210,238.32
  4. Step 4: Simplify right side
    630,958.80x = 199,009,251,657.12
  5. Step 5: Solve for x
    x = 199,009,251,657.12/630,958.80
  6. Step 6: Final answer
    x = 315,407.68

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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.