Home / 780,052.30-1,170,078.45-727,564.30

Finding the Fourth Proportional to 780,052.30, 1,170,078.45 and 727,564.30

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Solution

The fourth proportional to 780,052.30, 1,170,078.45 and 727,564.30 is: 1,091,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,052.30 : 1,170,078.45 = 727,564.30 : x
  2. Step 2: Convert to fraction form
    780,052.30/1,170,078.45 = 727,564.30/x
  3. Step 3: Cross multiply
    780,052.30x = 1,170,078.45 × 727,564.30
  4. Step 4: Simplify right side
    780,052.30x = 851,307,308,419.34
  5. Step 5: Solve for x
    x = 851,307,308,419.34/780,052.30
  6. Step 6: Final answer
    x = 1,091,346.45

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Double scale
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Similar ratio
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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.