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Finding the Fourth Proportional to 626,559.98, 864,653.54 and 340,080.03

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Solution

The fourth proportional to 626,559.98, 864,653.54 and 340,080.03 is: 469,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,559.98 : 864,653.54 = 340,080.03 : x
  2. Step 2: Convert to fraction form
    626,559.98/864,653.54 = 340,080.03/x
  3. Step 3: Cross multiply
    626,559.98x = 864,653.54 × 340,080.03
  4. Step 4: Simplify right side
    626,559.98x = 294,051,400,122.41
  5. Step 5: Solve for x
    x = 294,051,400,122.41/626,559.98
  6. Step 6: Final answer
    x = 469,310.86

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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.