Home / 683,740.80-1,026,534.60-399,722.40

Finding the Fourth Proportional to 683,740.80, 1,026,534.60 and 399,722.40

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Solution

The fourth proportional to 683,740.80, 1,026,534.60 and 399,722.40 is: 600,123.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,740.80 : 1,026,534.60 = 399,722.40 : x
  2. Step 2: Convert to fraction form
    683,740.80/1,026,534.60 = 399,722.40/x
  3. Step 3: Cross multiply
    683,740.80x = 1,026,534.60 × 399,722.40
  4. Step 4: Simplify right side
    683,740.80x = 410,328,873,995.04
  5. Step 5: Solve for x
    x = 410,328,873,995.04/683,740.80
  6. Step 6: Final answer
    x = 600,123.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.