Home / 772,686.51-1,159,017.45-211,721.01

Finding the Fourth Proportional to 772,686.51, 1,159,017.45 and 211,721.01

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Solution

The fourth proportional to 772,686.51, 1,159,017.45 and 211,721.01 is: 317,578.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,686.51 : 1,159,017.45 = 211,721.01 : x
  2. Step 2: Convert to fraction form
    772,686.51/1,159,017.45 = 211,721.01/x
  3. Step 3: Cross multiply
    772,686.51x = 1,159,017.45 × 211,721.01
  4. Step 4: Simplify right side
    772,686.51x = 245,388,345,121.63
  5. Step 5: Solve for x
    x = 245,388,345,121.63/772,686.51
  6. Step 6: Final answer
    x = 317,578.14

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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.