Home / 991,625.72-1,487,438.90-271,974.92

Finding the Fourth Proportional to 991,625.72, 1,487,438.90 and 271,974.92

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Solution

The fourth proportional to 991,625.72, 1,487,438.90 and 271,974.92 is: 407,962.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,625.72 : 1,487,438.90 = 271,974.92 : x
  2. Step 2: Convert to fraction form
    991,625.72/1,487,438.90 = 271,974.92/x
  3. Step 3: Cross multiply
    991,625.72x = 1,487,438.90 × 271,974.92
  4. Step 4: Simplify right side
    991,625.72x = 404,546,069,075.13
  5. Step 5: Solve for x
    x = 404,546,069,075.13/991,625.72
  6. Step 6: Final answer
    x = 407,962.46

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1.5x scale

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.