Home / 1,021,990.18-1,410,378.38-586,487.20

Finding the Fourth Proportional to 1,021,990.18, 1,410,378.38 and 586,487.20

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Solution

The fourth proportional to 1,021,990.18, 1,410,378.38 and 586,487.20 is: 809,370.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,990.18 : 1,410,378.38 = 586,487.20 : x
  2. Step 2: Convert to fraction form
    1,021,990.18/1,410,378.38 = 586,487.20/x
  3. Step 3: Cross multiply
    1,021,990.18x = 1,410,378.38 × 586,487.20
  4. Step 4: Simplify right side
    1,021,990.18x = 827,168,857,042.41
  5. Step 5: Solve for x
    x = 827,168,857,042.41/1,021,990.18
  6. Step 6: Final answer
    x = 809,370.65

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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.