Home / 1,446,860.89-2,170,080.05-421,915.76

Finding the Fourth Proportional to 1,446,860.89, 2,170,080.05 and 421,915.76

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Solution

The fourth proportional to 1,446,860.89, 2,170,080.05 and 421,915.76 is: 632,812.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446,860.89 : 2,170,080.05 = 421,915.76 : x
  2. Step 2: Convert to fraction form
    1,446,860.89/2,170,080.05 = 421,915.76/x
  3. Step 3: Cross multiply
    1,446,860.89x = 2,170,080.05 × 421,915.76
  4. Step 4: Simplify right side
    1,446,860.89x = 915,590,968,734.41
  5. Step 5: Solve for x
    x = 915,590,968,734.41/1,446,860.89
  6. Step 6: Final answer
    x = 632,812.02

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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.