Home / 1,152,362.73-1,590,303.87-643,163.52

Finding the Fourth Proportional to 1,152,362.73, 1,590,303.87 and 643,163.52

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Solution

The fourth proportional to 1,152,362.73, 1,590,303.87 and 643,163.52 is: 887,589.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,362.73 : 1,590,303.87 = 643,163.52 : x
  2. Step 2: Convert to fraction form
    1,152,362.73/1,590,303.87 = 643,163.52/x
  3. Step 3: Cross multiply
    1,152,362.73x = 1,590,303.87 × 643,163.52
  4. Step 4: Simplify right side
    1,152,362.73x = 1,022,825,434,898.82
  5. Step 5: Solve for x
    x = 1,022,825,434,898.82/1,152,362.73
  6. Step 6: Final answer
    x = 887,589.83

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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.