Home / 1,316,325.60-1,974,553.20-686,469.60

Finding the Fourth Proportional to 1,316,325.60, 1,974,553.20 and 686,469.60

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Solution

The fourth proportional to 1,316,325.60, 1,974,553.20 and 686,469.60 is: 1,029,738.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,325.60 : 1,974,553.20 = 686,469.60 : x
  2. Step 2: Convert to fraction form
    1,316,325.60/1,974,553.20 = 686,469.60/x
  3. Step 3: Cross multiply
    1,316,325.60x = 1,974,553.20 × 686,469.60
  4. Step 4: Simplify right side
    1,316,325.60x = 1,355,470,745,382.72
  5. Step 5: Solve for x
    x = 1,355,470,745,382.72/1,316,325.60
  6. Step 6: Final answer
    x = 1,029,738.19

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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.