Home / 772,518-1,158,725.16-211,557.36

Finding the Fourth Proportional to 772,518, 1,158,725.16 and 211,557.36

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Solution

The fourth proportional to 772,518, 1,158,725.16 and 211,557.36 is: 317,321.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,518 : 1,158,725.16 = 211,557.36 : x
  2. Step 2: Convert to fraction form
    772,518/1,158,725.16 = 211,557.36/x
  3. Step 3: Cross multiply
    772,518x = 1,158,725.16 × 211,557.36
  4. Step 4: Simplify right side
    772,518x = 245,136,835,815.18
  5. Step 5: Solve for x
    x = 245,136,835,815.18/772,518
  6. Step 6: Final answer
    x = 317,321.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.