Home / 1,853,678.10-2,778,443.55-788,538.90

Finding the Fourth Proportional to 1,853,678.10, 2,778,443.55 and 788,538.90

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Solution

The fourth proportional to 1,853,678.10, 2,778,443.55 and 788,538.90 is: 1,181,926.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853,678.10 : 2,778,443.55 = 788,538.90 : x
  2. Step 2: Convert to fraction form
    1,853,678.10/2,778,443.55 = 788,538.90/x
  3. Step 3: Cross multiply
    1,853,678.10x = 2,778,443.55 × 788,538.90
  4. Step 4: Simplify right side
    1,853,678.10x = 2,190,910,820,629.10
  5. Step 5: Solve for x
    x = 2,190,910,820,629.10/1,853,678.10
  6. Step 6: Final answer
    x = 1,181,926.26

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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.