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Finding the Fourth Proportional to 626,544.64, 864,632.40 and 340,064.82

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Solution

The fourth proportional to 626,544.64, 864,632.40 and 340,064.82 is: 469,289.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,544.64 : 864,632.40 = 340,064.82 : x
  2. Step 2: Convert to fraction form
    626,544.64/864,632.40 = 340,064.82/x
  3. Step 3: Cross multiply
    626,544.64x = 864,632.40 × 340,064.82
  4. Step 4: Simplify right side
    626,544.64x = 294,031,061,472.17
  5. Step 5: Solve for x
    x = 294,031,061,472.17/626,544.64
  6. Step 6: Final answer
    x = 469,289.88

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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.