Home / 1,986,880.10-2,980,764.62-724,707.74

Finding the Fourth Proportional to 1,986,880.10, 2,980,764.62 and 724,707.74

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Solution

The fourth proportional to 1,986,880.10, 2,980,764.62 and 724,707.74 is: 1,087,223.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,880.10 : 2,980,764.62 = 724,707.74 : x
  2. Step 2: Convert to fraction form
    1,986,880.10/2,980,764.62 = 724,707.74/x
  3. Step 3: Cross multiply
    1,986,880.10x = 2,980,764.62 × 724,707.74
  4. Step 4: Simplify right side
    1,986,880.10x = 2,160,183,191,232.16
  5. Step 5: Solve for x
    x = 2,160,183,191,232.16/1,986,880.10
  6. Step 6: Final answer
    x = 1,087,223.73

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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.