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Finding the Fourth Proportional to 630,872.82, 870,604.12 and 344,392.84

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Solution

The fourth proportional to 630,872.82, 870,604.12 and 344,392.84 is: 475,261.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,872.82 : 870,604.12 = 344,392.84 : x
  2. Step 2: Convert to fraction form
    630,872.82/870,604.12 = 344,392.84/x
  3. Step 3: Cross multiply
    630,872.82x = 870,604.12 × 344,392.84
  4. Step 4: Simplify right side
    630,872.82x = 299,829,825,402.50
  5. Step 5: Solve for x
    x = 299,829,825,402.50/630,872.82
  6. Step 6: Final answer
    x = 475,261.92

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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.