Home / 1,328,074.02-1,990,927.50-486,428.94

Finding the Fourth Proportional to 1,328,074.02, 1,990,927.50 and 486,428.94

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Solution

The fourth proportional to 1,328,074.02, 1,990,927.50 and 486,428.94 is: 729,209.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,074.02 : 1,990,927.50 = 486,428.94 : x
  2. Step 2: Convert to fraction form
    1,328,074.02/1,990,927.50 = 486,428.94/x
  3. Step 3: Cross multiply
    1,328,074.02x = 1,990,927.50 × 486,428.94
  4. Step 4: Simplify right side
    1,328,074.02x = 968,444,753,441.85
  5. Step 5: Solve for x
    x = 968,444,753,441.85/1,328,074.02
  6. Step 6: Final answer
    x = 729,209.92

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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.