Home / 991,281.70-1,486,923.72-271,629.46

Finding the Fourth Proportional to 991,281.70, 1,486,923.72 and 271,629.46

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Solution

The fourth proportional to 991,281.70, 1,486,923.72 and 271,629.46 is: 407,444.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,281.70 : 1,486,923.72 = 271,629.46 : x
  2. Step 2: Convert to fraction form
    991,281.70/1,486,923.72 = 271,629.46/x
  3. Step 3: Cross multiply
    991,281.70x = 1,486,923.72 × 271,629.46
  4. Step 4: Simplify right side
    991,281.70x = 403,892,287,124.79
  5. Step 5: Solve for x
    x = 403,892,287,124.79/991,281.70
  6. Step 6: Final answer
    x = 407,444.51

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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.