Home / 1,285,004.70-1,925,806.05-684,673.20

Finding the Fourth Proportional to 1,285,004.70, 1,925,806.05 and 684,673.20

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Solution

The fourth proportional to 1,285,004.70, 1,925,806.05 and 684,673.20 is: 1,026,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,004.70 : 1,925,806.05 = 684,673.20 : x
  2. Step 2: Convert to fraction form
    1,285,004.70/1,925,806.05 = 684,673.20/x
  3. Step 3: Cross multiply
    1,285,004.70x = 1,925,806.05 × 684,673.20
  4. Step 4: Simplify right side
    1,285,004.70x = 1,318,547,790,832.86
  5. Step 5: Solve for x
    x = 1,318,547,790,832.86/1,285,004.70
  6. Step 6: Final answer
    x = 1,026,103.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.