Home / 1,210,055.99-1,669,813.85-666,085.53

Finding the Fourth Proportional to 1,210,055.99, 1,669,813.85 and 666,085.53

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Solution

The fourth proportional to 1,210,055.99, 1,669,813.85 and 666,085.53 is: 919,163.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,055.99 : 1,669,813.85 = 666,085.53 : x
  2. Step 2: Convert to fraction form
    1,210,055.99/1,669,813.85 = 666,085.53/x
  3. Step 3: Cross multiply
    1,210,055.99x = 1,669,813.85 × 666,085.53
  4. Step 4: Simplify right side
    1,210,055.99x = 1,112,238,839,948.16
  5. Step 5: Solve for x
    x = 1,112,238,839,948.16/1,210,055.99
  6. Step 6: Final answer
    x = 919,163.12

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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.