Home / 1,447,120-1,997,025.60-802,638.88

Finding the Fourth Proportional to 1,447,120, 1,997,025.60 and 802,638.88

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Solution

The fourth proportional to 1,447,120, 1,997,025.60 and 802,638.88 is: 1,107,641.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,120 : 1,997,025.60 = 802,638.88 : x
  2. Step 2: Convert to fraction form
    1,447,120/1,997,025.60 = 802,638.88/x
  3. Step 3: Cross multiply
    1,447,120x = 1,997,025.60 × 802,638.88
  4. Step 4: Simplify right side
    1,447,120x = 1,602,890,390,915.33
  5. Step 5: Solve for x
    x = 1,602,890,390,915.33/1,447,120
  6. Step 6: Final answer
    x = 1,107,641.65

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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.