Home / 1,317,667.20-1,976,500.80-1,303,670.40

Finding the Fourth Proportional to 1,317,667.20, 1,976,500.80 and 1,303,670.40

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Solution

The fourth proportional to 1,317,667.20, 1,976,500.80 and 1,303,670.40 is: 1,955,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,667.20 : 1,976,500.80 = 1,303,670.40 : x
  2. Step 2: Convert to fraction form
    1,317,667.20/1,976,500.80 = 1,303,670.40/x
  3. Step 3: Cross multiply
    1,317,667.20x = 1,976,500.80 × 1,303,670.40
  4. Step 4: Simplify right side
    1,317,667.20x = 2,576,705,588,536.32
  5. Step 5: Solve for x
    x = 2,576,705,588,536.32/1,317,667.20
  6. Step 6: Final answer
    x = 1,955,505.60

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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.