Home / 780,086.32-1,169,368.08-380,710.96

Finding the Fourth Proportional to 780,086.32, 1,169,368.08 and 380,710.96

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Solution

The fourth proportional to 780,086.32, 1,169,368.08 and 380,710.96 is: 570,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,086.32 : 1,169,368.08 = 380,710.96 : x
  2. Step 2: Convert to fraction form
    780,086.32/1,169,368.08 = 380,710.96/x
  3. Step 3: Cross multiply
    780,086.32x = 1,169,368.08 × 380,710.96
  4. Step 4: Simplify right side
    780,086.32x = 445,191,244,330.16
  5. Step 5: Solve for x
    x = 445,191,244,330.16/780,086.32
  6. Step 6: Final answer
    x = 570,694.85

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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.