Home / 1,182,409.08-1,631,724.44-638,544.89

Finding the Fourth Proportional to 1,182,409.08, 1,631,724.44 and 638,544.89

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Solution

The fourth proportional to 1,182,409.08, 1,631,724.44 and 638,544.89 is: 881,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,409.08 : 1,631,724.44 = 638,544.89 : x
  2. Step 2: Convert to fraction form
    1,182,409.08/1,631,724.44 = 638,544.89/x
  3. Step 3: Cross multiply
    1,182,409.08x = 1,631,724.44 × 638,544.89
  4. Step 4: Simplify right side
    1,182,409.08x = 1,041,929,291,698.77
  5. Step 5: Solve for x
    x = 1,041,929,291,698.77/1,182,409.08
  6. Step 6: Final answer
    x = 881,191.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.