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Finding the Fourth Proportional to 630,392.32, 869,924.16 and 343,912.32

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Solution

The fourth proportional to 630,392.32, 869,924.16 and 343,912.32 is: 474,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,392.32 : 869,924.16 = 343,912.32 : x
  2. Step 2: Convert to fraction form
    630,392.32/869,924.16 = 343,912.32/x
  3. Step 3: Cross multiply
    630,392.32x = 869,924.16 × 343,912.32
  4. Step 4: Simplify right side
    630,392.32x = 299,177,636,089.65
  5. Step 5: Solve for x
    x = 299,177,636,089.65/630,392.32
  6. Step 6: Final answer
    x = 474,589.60

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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.