Home / 1,432,900.98-1,977,685.92-821,464.20

Finding the Fourth Proportional to 1,432,900.98, 1,977,685.92 and 821,464.20

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Solution

The fourth proportional to 1,432,900.98, 1,977,685.92 and 821,464.20 is: 1,133,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,900.98 : 1,977,685.92 = 821,464.20 : x
  2. Step 2: Convert to fraction form
    1,432,900.98/1,977,685.92 = 821,464.20/x
  3. Step 3: Cross multiply
    1,432,900.98x = 1,977,685.92 × 821,464.20
  4. Step 4: Simplify right side
    1,432,900.98x = 1,624,598,182,124.06
  5. Step 5: Solve for x
    x = 1,624,598,182,124.06/1,432,900.98
  6. Step 6: Final answer
    x = 1,133,782.59

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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.