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Finding the Fourth Proportional to 626,530.74, 864,613.25 and 340,050.86

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Solution

The fourth proportional to 626,530.74, 864,613.25 and 340,050.86 is: 469,270.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,530.74 : 864,613.25 = 340,050.86 : x
  2. Step 2: Convert to fraction form
    626,530.74/864,613.25 = 340,050.86/x
  3. Step 3: Cross multiply
    626,530.74x = 864,613.25 × 340,050.86
  4. Step 4: Simplify right side
    626,530.74x = 294,012,477,529.64
  5. Step 5: Solve for x
    x = 294,012,477,529.64/626,530.74
  6. Step 6: Final answer
    x = 469,270.63

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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.