Home / 991,007.48-1,486,732.30-317,129.27

Finding the Fourth Proportional to 991,007.48, 1,486,732.30 and 317,129.27

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Solution

The fourth proportional to 991,007.48, 1,486,732.30 and 317,129.27 is: 475,764.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,007.48 : 1,486,732.30 = 317,129.27 : x
  2. Step 2: Convert to fraction form
    991,007.48/1,486,732.30 = 317,129.27/x
  3. Step 3: Cross multiply
    991,007.48x = 1,486,732.30 × 317,129.27
  4. Step 4: Simplify right side
    991,007.48x = 471,486,321,550.76
  5. Step 5: Solve for x
    x = 471,486,321,550.76/991,007.48
  6. Step 6: Final answer
    x = 475,764.64

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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.