Home / 626,742.80-864,905.64-340,262.72

Finding the Fourth Proportional to 626,742.80, 864,905.64 and 340,262.72

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Solution

The fourth proportional to 626,742.80, 864,905.64 and 340,262.72 is: 469,562.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,742.80 : 864,905.64 = 340,262.72 : x
  2. Step 2: Convert to fraction form
    626,742.80/864,905.64 = 340,262.72/x
  3. Step 3: Cross multiply
    626,742.80x = 864,905.64 × 340,262.72
  4. Step 4: Simplify right side
    626,742.80x = 294,295,145,609.74
  5. Step 5: Solve for x
    x = 294,295,145,609.74/626,742.80
  6. Step 6: Final answer
    x = 469,562.87

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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.