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Finding the Fourth Proportional to 624,705, 862,026.72 and 352,756.44

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Solution

The fourth proportional to 624,705, 862,026.72 and 352,756.44 is: 486,766.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,705 : 862,026.72 = 352,756.44 : x
  2. Step 2: Convert to fraction form
    624,705/862,026.72 = 352,756.44/x
  3. Step 3: Cross multiply
    624,705x = 862,026.72 × 352,756.44
  4. Step 4: Simplify right side
    624,705x = 304,085,476,932.08
  5. Step 5: Solve for x
    x = 304,085,476,932.08/624,705
  6. Step 6: Final answer
    x = 486,766.52

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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.