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Finding the Fourth Proportional to 626,544.30, 864,632.12 and 340,064.51

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Solution

The fourth proportional to 626,544.30, 864,632.12 and 340,064.51 is: 469,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,544.30 : 864,632.12 = 340,064.51 : x
  2. Step 2: Convert to fraction form
    626,544.30/864,632.12 = 340,064.51/x
  3. Step 3: Cross multiply
    626,544.30x = 864,632.12 × 340,064.51
  4. Step 4: Simplify right side
    626,544.30x = 294,030,692,194.58
  5. Step 5: Solve for x
    x = 294,030,692,194.58/626,544.30
  6. Step 6: Final answer
    x = 469,289.55

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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.