Home / 459,917.20-634,684.80-258,713.20

Finding the Fourth Proportional to 459,917.20, 634,684.80 and 258,713.20

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Solution

The fourth proportional to 459,917.20, 634,684.80 and 258,713.20 is: 357,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,917.20 : 634,684.80 = 258,713.20 : x
  2. Step 2: Convert to fraction form
    459,917.20/634,684.80 = 258,713.20/x
  3. Step 3: Cross multiply
    459,917.20x = 634,684.80 × 258,713.20
  4. Step 4: Simplify right side
    459,917.20x = 164,201,335,599.36
  5. Step 5: Solve for x
    x = 164,201,335,599.36/459,917.20
  6. Step 6: Final answer
    x = 357,023.69

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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.