Home / 455,129.74-628,073.25-261,535.13

Finding the Fourth Proportional to 455,129.74, 628,073.25 and 261,535.13

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Solution

The fourth proportional to 455,129.74, 628,073.25 and 261,535.13 is: 360,915.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,129.74 : 628,073.25 = 261,535.13 : x
  2. Step 2: Convert to fraction form
    455,129.74/628,073.25 = 261,535.13/x
  3. Step 3: Cross multiply
    455,129.74x = 628,073.25 × 261,535.13
  4. Step 4: Simplify right side
    455,129.74x = 164,263,219,161.34
  5. Step 5: Solve for x
    x = 164,263,219,161.34/455,129.74
  6. Step 6: Final answer
    x = 360,915.16

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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.