Home / 1,389,055.34-2,082,203.58-788,774.06

Finding the Fourth Proportional to 1,389,055.34, 2,082,203.58 and 788,774.06

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Solution

The fourth proportional to 1,389,055.34, 2,082,203.58 and 788,774.06 is: 1,182,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,055.34 : 2,082,203.58 = 788,774.06 : x
  2. Step 2: Convert to fraction form
    1,389,055.34/2,082,203.58 = 788,774.06/x
  3. Step 3: Cross multiply
    1,389,055.34x = 2,082,203.58 × 788,774.06
  4. Step 4: Simplify right side
    1,389,055.34x = 1,642,388,171,543.14
  5. Step 5: Solve for x
    x = 1,642,388,171,543.14/1,389,055.34
  6. Step 6: Final answer
    x = 1,182,377.78

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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.