Home / 455,315.18-628,417.19-271,565.52

Finding the Fourth Proportional to 455,315.18, 628,417.19 and 271,565.52

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Solution

The fourth proportional to 455,315.18, 628,417.19 and 271,565.52 is: 374,809.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,315.18 : 628,417.19 = 271,565.52 : x
  2. Step 2: Convert to fraction form
    455,315.18/628,417.19 = 271,565.52/x
  3. Step 3: Cross multiply
    455,315.18x = 628,417.19 × 271,565.52
  4. Step 4: Simplify right side
    455,315.18x = 170,656,440,979.29
  5. Step 5: Solve for x
    x = 170,656,440,979.29/455,315.18
  6. Step 6: Final answer
    x = 374,809.47

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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.