Home / 455,345.04-628,431.26-259,159.22

Finding the Fourth Proportional to 455,345.04, 628,431.26 and 259,159.22

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Solution

The fourth proportional to 455,345.04, 628,431.26 and 259,159.22 is: 357,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,345.04 : 628,431.26 = 259,159.22 : x
  2. Step 2: Convert to fraction form
    455,345.04/628,431.26 = 259,159.22/x
  3. Step 3: Cross multiply
    455,345.04x = 628,431.26 × 259,159.22
  4. Step 4: Simplify right side
    455,345.04x = 162,863,752,298.34
  5. Step 5: Solve for x
    x = 162,863,752,298.34/455,345.04
  6. Step 6: Final answer
    x = 357,671.08

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1.5x scale

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.