Home / 501,436.12-691,969.98-275,079.64

Finding the Fourth Proportional to 501,436.12, 691,969.98 and 275,079.64

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Solution

The fourth proportional to 501,436.12, 691,969.98 and 275,079.64 is: 379,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,436.12 : 691,969.98 = 275,079.64 : x
  2. Step 2: Convert to fraction form
    501,436.12/691,969.98 = 275,079.64/x
  3. Step 3: Cross multiply
    501,436.12x = 691,969.98 × 275,079.64
  4. Step 4: Simplify right side
    501,436.12x = 190,346,852,989.21
  5. Step 5: Solve for x
    x = 190,346,852,989.21/501,436.12
  6. Step 6: Final answer
    x = 379,603.39

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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.