Home / 786,749.60-1,181,290.80-471,821.60

Finding the Fourth Proportional to 786,749.60, 1,181,290.80 and 471,821.60

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Solution

The fourth proportional to 786,749.60, 1,181,290.80 and 471,821.60 is: 708,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,749.60 : 1,181,290.80 = 471,821.60 : x
  2. Step 2: Convert to fraction form
    786,749.60/1,181,290.80 = 471,821.60/x
  3. Step 3: Cross multiply
    786,749.60x = 1,181,290.80 × 471,821.60
  4. Step 4: Simplify right side
    786,749.60x = 557,358,515,321.28
  5. Step 5: Solve for x
    x = 557,358,515,321.28/786,749.60
  6. Step 6: Final answer
    x = 708,431.90

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1.5x scale

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.