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Finding the Fourth Proportional to 715,907.57, 988,102.80 and 454,093.49

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Solution

The fourth proportional to 715,907.57, 988,102.80 and 454,093.49 is: 626,744.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,907.57 : 988,102.80 = 454,093.49 : x
  2. Step 2: Convert to fraction form
    715,907.57/988,102.80 = 454,093.49/x
  3. Step 3: Cross multiply
    715,907.57x = 988,102.80 × 454,093.49
  4. Step 4: Simplify right side
    715,907.57x = 448,691,051,401.03
  5. Step 5: Solve for x
    x = 448,691,051,401.03/715,907.57
  6. Step 6: Final answer
    x = 626,744.39

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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.