Home / 626,620.38-864,737.10-340,140.36

Finding the Fourth Proportional to 626,620.38, 864,737.10 and 340,140.36

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Solution

The fourth proportional to 626,620.38, 864,737.10 and 340,140.36 is: 469,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,620.38 : 864,737.10 = 340,140.36 : x
  2. Step 2: Convert to fraction form
    626,620.38/864,737.10 = 340,140.36/x
  3. Step 3: Cross multiply
    626,620.38x = 864,737.10 × 340,140.36
  4. Step 4: Simplify right side
    626,620.38x = 294,131,988,499.36
  5. Step 5: Solve for x
    x = 294,131,988,499.36/626,620.38
  6. Step 6: Final answer
    x = 469,394.23

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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.