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Finding the Fourth Proportional to 626,558.93, 864,652.31 and 340,079.13

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Solution

The fourth proportional to 626,558.93, 864,652.31 and 340,079.13 is: 469,309.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,558.93 : 864,652.31 = 340,079.13 : x
  2. Step 2: Convert to fraction form
    626,558.93/864,652.31 = 340,079.13/x
  3. Step 3: Cross multiply
    626,558.93x = 864,652.31 × 340,079.13
  4. Step 4: Simplify right side
    626,558.93x = 294,050,203,636.90
  5. Step 5: Solve for x
    x = 294,050,203,636.90/626,558.93
  6. Step 6: Final answer
    x = 469,309.74

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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.