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Finding the Fourth Proportional to 630,394.32, 869,926.92 and 343,914.32

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Solution

The fourth proportional to 630,394.32, 869,926.92 and 343,914.32 is: 474,592.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,394.32 : 869,926.92 = 343,914.32 : x
  2. Step 2: Convert to fraction form
    630,394.32/869,926.92 = 343,914.32/x
  3. Step 3: Cross multiply
    630,394.32x = 869,926.92 × 343,914.32
  4. Step 4: Simplify right side
    630,394.32x = 299,180,325,141.49
  5. Step 5: Solve for x
    x = 299,180,325,141.49/630,394.32
  6. Step 6: Final answer
    x = 474,592.36

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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.