Home / 988,683.21-1,483,467.89-455,918.67

Finding the Fourth Proportional to 988,683.21, 1,483,467.89 and 455,918.67

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Solution

The fourth proportional to 988,683.21, 1,483,467.89 and 455,918.67 is: 684,082.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,683.21 : 1,483,467.89 = 455,918.67 : x
  2. Step 2: Convert to fraction form
    988,683.21/1,483,467.89 = 455,918.67/x
  3. Step 3: Cross multiply
    988,683.21x = 1,483,467.89 × 455,918.67
  4. Step 4: Simplify right side
    988,683.21x = 676,340,705,116.91
  5. Step 5: Solve for x
    x = 676,340,705,116.91/988,683.21
  6. Step 6: Final answer
    x = 684,082.32

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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.