Home / 486,143.74-670,877.13-271,281.52

Finding the Fourth Proportional to 486,143.74, 670,877.13 and 271,281.52

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Solution

The fourth proportional to 486,143.74, 670,877.13 and 271,281.52 is: 374,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,143.74 : 670,877.13 = 271,281.52 : x
  2. Step 2: Convert to fraction form
    486,143.74/670,877.13 = 271,281.52/x
  3. Step 3: Cross multiply
    486,143.74x = 670,877.13 × 271,281.52
  4. Step 4: Simplify right side
    486,143.74x = 181,996,567,559.64
  5. Step 5: Solve for x
    x = 181,996,567,559.64/486,143.74
  6. Step 6: Final answer
    x = 374,367.81

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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.