Home / 1,340,529.34-1,849,947.78-728,690.98

Finding the Fourth Proportional to 1,340,529.34, 1,849,947.78 and 728,690.98

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Solution

The fourth proportional to 1,340,529.34, 1,849,947.78 and 728,690.98 is: 1,005,602.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,529.34 : 1,849,947.78 = 728,690.98 : x
  2. Step 2: Convert to fraction form
    1,340,529.34/1,849,947.78 = 728,690.98/x
  3. Step 3: Cross multiply
    1,340,529.34x = 1,849,947.78 × 728,690.98
  4. Step 4: Simplify right side
    1,340,529.34x = 1,348,040,260,757.02
  5. Step 5: Solve for x
    x = 1,348,040,260,757.02/1,340,529.34
  6. Step 6: Final answer
    x = 1,005,602.95

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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.