Home / 1,087,898.70-1,500,870.30-628,928.82

Finding the Fourth Proportional to 1,087,898.70, 1,500,870.30 and 628,928.82

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Solution

The fourth proportional to 1,087,898.70, 1,500,870.30 and 628,928.82 is: 867,673.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,898.70 : 1,500,870.30 = 628,928.82 : x
  2. Step 2: Convert to fraction form
    1,087,898.70/1,500,870.30 = 628,928.82/x
  3. Step 3: Cross multiply
    1,087,898.70x = 1,500,870.30 × 628,928.82
  4. Step 4: Simplify right side
    1,087,898.70x = 943,940,586,752.05
  5. Step 5: Solve for x
    x = 943,940,586,752.05/1,087,898.70
  6. Step 6: Final answer
    x = 867,673.24

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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.