Home / 1,328,323.66-1,992,271.64-381,479.02

Finding the Fourth Proportional to 1,328,323.66, 1,992,271.64 and 381,479.02

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Solution

The fourth proportional to 1,328,323.66, 1,992,271.64 and 381,479.02 is: 572,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,323.66 : 1,992,271.64 = 381,479.02 : x
  2. Step 2: Convert to fraction form
    1,328,323.66/1,992,271.64 = 381,479.02/x
  3. Step 3: Cross multiply
    1,328,323.66x = 1,992,271.64 × 381,479.02
  4. Step 4: Simplify right side
    1,328,323.66x = 760,009,832,800.99
  5. Step 5: Solve for x
    x = 760,009,832,800.99/1,328,323.66
  6. Step 6: Final answer
    x = 572,157.11

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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.