Home / 780,051.40-1,170,077.10-509,446.60

Finding the Fourth Proportional to 780,051.40, 1,170,077.10 and 509,446.60

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Solution

The fourth proportional to 780,051.40, 1,170,077.10 and 509,446.60 is: 764,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,051.40 : 1,170,077.10 = 509,446.60 : x
  2. Step 2: Convert to fraction form
    780,051.40/1,170,077.10 = 509,446.60/x
  3. Step 3: Cross multiply
    780,051.40x = 1,170,077.10 × 509,446.60
  4. Step 4: Simplify right side
    780,051.40x = 596,091,800,332.86
  5. Step 5: Solve for x
    x = 596,091,800,332.86/780,051.40
  6. Step 6: Final answer
    x = 764,169.90

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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.