Home / 1,432,664.66-2,148,257.46-421,655.60

Finding the Fourth Proportional to 1,432,664.66, 2,148,257.46 and 421,655.60

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Solution

The fourth proportional to 1,432,664.66, 2,148,257.46 and 421,655.60 is: 632,265.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,664.66 : 2,148,257.46 = 421,655.60 : x
  2. Step 2: Convert to fraction form
    1,432,664.66/2,148,257.46 = 421,655.60/x
  3. Step 3: Cross multiply
    1,432,664.66x = 2,148,257.46 × 421,655.60
  4. Step 4: Simplify right side
    1,432,664.66x = 905,824,788,250.78
  5. Step 5: Solve for x
    x = 905,824,788,250.78/1,432,664.66
  6. Step 6: Final answer
    x = 632,265.74

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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.