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Finding the Fourth Proportional to 630,740.61, 946,120.64 and 210,016.89

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Solution

The fourth proportional to 630,740.61, 946,120.64 and 210,016.89 is: 315,028.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,740.61 : 946,120.64 = 210,016.89 : x
  2. Step 2: Convert to fraction form
    630,740.61/946,120.64 = 210,016.89/x
  3. Step 3: Cross multiply
    630,740.61x = 946,120.64 × 210,016.89
  4. Step 4: Simplify right side
    630,740.61x = 198,701,313,327.53
  5. Step 5: Solve for x
    x = 198,701,313,327.53/630,740.61
  6. Step 6: Final answer
    x = 315,028.57

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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.