Home / 1,203,618.40-1,805,427.60-778,465.60

Finding the Fourth Proportional to 1,203,618.40, 1,805,427.60 and 778,465.60

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Solution

The fourth proportional to 1,203,618.40, 1,805,427.60 and 778,465.60 is: 1,167,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,618.40 : 1,805,427.60 = 778,465.60 : x
  2. Step 2: Convert to fraction form
    1,203,618.40/1,805,427.60 = 778,465.60/x
  3. Step 3: Cross multiply
    1,203,618.40x = 1,805,427.60 × 778,465.60
  4. Step 4: Simplify right side
    1,203,618.40x = 1,405,463,279,890.56
  5. Step 5: Solve for x
    x = 1,405,463,279,890.56/1,203,618.40
  6. Step 6: Final answer
    x = 1,167,698.40

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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.