Home / 989,858.40-1,484,787.60-635,564.40

Finding the Fourth Proportional to 989,858.40, 1,484,787.60 and 635,564.40

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Solution

The fourth proportional to 989,858.40, 1,484,787.60 and 635,564.40 is: 953,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,858.40 : 1,484,787.60 = 635,564.40 : x
  2. Step 2: Convert to fraction form
    989,858.40/1,484,787.60 = 635,564.40/x
  3. Step 3: Cross multiply
    989,858.40x = 1,484,787.60 × 635,564.40
  4. Step 4: Simplify right side
    989,858.40x = 943,678,140,121.44
  5. Step 5: Solve for x
    x = 943,678,140,121.44/989,858.40
  6. Step 6: Final answer
    x = 953,346.60

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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.