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Finding the Fourth Proportional to 626,647.33, 864,770.90 and 340,164.91

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Solution

The fourth proportional to 626,647.33, 864,770.90 and 340,164.91 is: 469,426.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,647.33 : 864,770.90 = 340,164.91 : x
  2. Step 2: Convert to fraction form
    626,647.33/864,770.90 = 340,164.91/x
  3. Step 3: Cross multiply
    626,647.33x = 864,770.90 × 340,164.91
  4. Step 4: Simplify right side
    626,647.33x = 294,164,714,057.60
  5. Step 5: Solve for x
    x = 294,164,714,057.60/626,647.33
  6. Step 6: Final answer
    x = 469,426.26

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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.