Home / 989,172.40-1,483,758.60-930,123.40

Finding the Fourth Proportional to 989,172.40, 1,483,758.60 and 930,123.40

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Solution

The fourth proportional to 989,172.40, 1,483,758.60 and 930,123.40 is: 1,395,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,172.40 : 1,483,758.60 = 930,123.40 : x
  2. Step 2: Convert to fraction form
    989,172.40/1,483,758.60 = 930,123.40/x
  3. Step 3: Cross multiply
    989,172.40x = 1,483,758.60 × 930,123.40
  4. Step 4: Simplify right side
    989,172.40x = 1,380,078,593,811.24
  5. Step 5: Solve for x
    x = 1,380,078,593,811.24/989,172.40
  6. Step 6: Final answer
    x = 1,395,185.10

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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.