Home / 989,715.20-1,484,572.80-847,997.60

Finding the Fourth Proportional to 989,715.20, 1,484,572.80 and 847,997.60

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Solution

The fourth proportional to 989,715.20, 1,484,572.80 and 847,997.60 is: 1,271,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,715.20 : 1,484,572.80 = 847,997.60 : x
  2. Step 2: Convert to fraction form
    989,715.20/1,484,572.80 = 847,997.60/x
  3. Step 3: Cross multiply
    989,715.20x = 1,484,572.80 × 847,997.60
  4. Step 4: Simplify right side
    989,715.20x = 1,258,914,171,425.28
  5. Step 5: Solve for x
    x = 1,258,914,171,425.28/989,715.20
  6. Step 6: Final answer
    x = 1,271,996.40

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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.