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Finding the Fourth Proportional to 630,286.26, 869,800.59 and 343,807.62

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Solution

The fourth proportional to 630,286.26, 869,800.59 and 343,807.62 is: 474,457.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,286.26 : 869,800.59 = 343,807.62 : x
  2. Step 2: Convert to fraction form
    630,286.26/869,800.59 = 343,807.62/x
  3. Step 3: Cross multiply
    630,286.26x = 869,800.59 × 343,807.62
  4. Step 4: Simplify right side
    630,286.26x = 299,044,070,722.50
  5. Step 5: Solve for x
    x = 299,044,070,722.50/630,286.26
  6. Step 6: Final answer
    x = 474,457.54

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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.