Home / 991,631.22-1,487,447.16-271,980.42

Finding the Fourth Proportional to 991,631.22, 1,487,447.16 and 271,980.42

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Solution

The fourth proportional to 991,631.22, 1,487,447.16 and 271,980.42 is: 407,970.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,631.22 : 1,487,447.16 = 271,980.42 : x
  2. Step 2: Convert to fraction form
    991,631.22/1,487,447.16 = 271,980.42/x
  3. Step 3: Cross multiply
    991,631.22x = 1,487,447.16 × 271,980.42
  4. Step 4: Simplify right side
    991,631.22x = 404,556,495,867.37
  5. Step 5: Solve for x
    x = 404,556,495,867.37/991,631.22
  6. Step 6: Final answer
    x = 407,970.72

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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.