Home / 1,003,628.80-1,505,005.80-404,390.80

Finding the Fourth Proportional to 1,003,628.80, 1,505,005.80 and 404,390.80

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Solution

The fourth proportional to 1,003,628.80, 1,505,005.80 and 404,390.80 is: 606,409.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,628.80 : 1,505,005.80 = 404,390.80 : x
  2. Step 2: Convert to fraction form
    1,003,628.80/1,505,005.80 = 404,390.80/x
  3. Step 3: Cross multiply
    1,003,628.80x = 1,505,005.80 × 404,390.80
  4. Step 4: Simplify right side
    1,003,628.80x = 608,610,499,466.64
  5. Step 5: Solve for x
    x = 608,610,499,466.64/1,003,628.80
  6. Step 6: Final answer
    x = 606,409.96

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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.