Home / 450,409.10-621,789.48-259,385.58

Finding the Fourth Proportional to 450,409.10, 621,789.48 and 259,385.58

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Solution

The fourth proportional to 450,409.10, 621,789.48 and 259,385.58 is: 358,081.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,409.10 : 621,789.48 = 259,385.58 : x
  2. Step 2: Convert to fraction form
    450,409.10/621,789.48 = 259,385.58/x
  3. Step 3: Cross multiply
    450,409.10x = 621,789.48 × 259,385.58
  4. Step 4: Simplify right side
    450,409.10x = 161,283,224,907.70
  5. Step 5: Solve for x
    x = 161,283,224,907.70/450,409.10
  6. Step 6: Final answer
    x = 358,081.63

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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.