Home / 716,100.03-988,205.13-393,811.02

Finding the Fourth Proportional to 716,100.03, 988,205.13 and 393,811.02

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Solution

The fourth proportional to 716,100.03, 988,205.13 and 393,811.02 is: 543,452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,100.03 : 988,205.13 = 393,811.02 : x
  2. Step 2: Convert to fraction form
    716,100.03/988,205.13 = 393,811.02/x
  3. Step 3: Cross multiply
    716,100.03x = 988,205.13 × 393,811.02
  4. Step 4: Simplify right side
    716,100.03x = 389,166,070,214.53
  5. Step 5: Solve for x
    x = 389,166,070,214.53/716,100.03
  6. Step 6: Final answer
    x = 543,452.11

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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.