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Finding the Fourth Proportional to 624,888.63, 862,354.71 and 349,234.38

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Solution

The fourth proportional to 624,888.63, 862,354.71 and 349,234.38 is: 481,948.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,888.63 : 862,354.71 = 349,234.38 : x
  2. Step 2: Convert to fraction form
    624,888.63/862,354.71 = 349,234.38/x
  3. Step 3: Cross multiply
    624,888.63x = 862,354.71 × 349,234.38
  4. Step 4: Simplify right side
    624,888.63x = 301,163,912,486.93
  5. Step 5: Solve for x
    x = 301,163,912,486.93/624,888.63
  6. Step 6: Final answer
    x = 481,948.14

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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.