Home / 462,719.55-638,585.53-258,789.45

Finding the Fourth Proportional to 462,719.55, 638,585.53 and 258,789.45

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Solution

The fourth proportional to 462,719.55, 638,585.53 and 258,789.45 is: 357,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,719.55 : 638,585.53 = 258,789.45 : x
  2. Step 2: Convert to fraction form
    462,719.55/638,585.53 = 258,789.45/x
  3. Step 3: Cross multiply
    462,719.55x = 638,585.53 × 258,789.45
  4. Step 4: Simplify right side
    462,719.55x = 165,259,197,409.75
  5. Step 5: Solve for x
    x = 165,259,197,409.75/462,719.55
  6. Step 6: Final answer
    x = 357,147.64

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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.