Home / 780,090.40-1,170,135.60-732,851.20

Finding the Fourth Proportional to 780,090.40, 1,170,135.60 and 732,851.20

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Solution

The fourth proportional to 780,090.40, 1,170,135.60 and 732,851.20 is: 1,099,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,090.40 : 1,170,135.60 = 732,851.20 : x
  2. Step 2: Convert to fraction form
    780,090.40/1,170,135.60 = 732,851.20/x
  3. Step 3: Cross multiply
    780,090.40x = 1,170,135.60 × 732,851.20
  4. Step 4: Simplify right side
    780,090.40x = 857,535,278,622.72
  5. Step 5: Solve for x
    x = 857,535,278,622.72/780,090.40
  6. Step 6: Final answer
    x = 1,099,276.80

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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.