Home / 1,340,374.39-1,849,729.01-728,528.54

Finding the Fourth Proportional to 1,340,374.39, 1,849,729.01 and 728,528.54

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Solution

The fourth proportional to 1,340,374.39, 1,849,729.01 and 728,528.54 is: 1,005,376.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,374.39 : 1,849,729.01 = 728,528.54 : x
  2. Step 2: Convert to fraction form
    1,340,374.39/1,849,729.01 = 728,528.54/x
  3. Step 3: Cross multiply
    1,340,374.39x = 1,849,729.01 × 728,528.54
  4. Step 4: Simplify right side
    1,340,374.39x = 1,347,580,362,159.66
  5. Step 5: Solve for x
    x = 1,347,580,362,159.66/1,340,374.39
  6. Step 6: Final answer
    x = 1,005,376.09

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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.