Home / 1,288,045.80-1,932,068.70-328,499.55

Finding the Fourth Proportional to 1,288,045.80, 1,932,068.70 and 328,499.55

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Solution

The fourth proportional to 1,288,045.80, 1,932,068.70 and 328,499.55 is: 492,749.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,045.80 : 1,932,068.70 = 328,499.55 : x
  2. Step 2: Convert to fraction form
    1,288,045.80/1,932,068.70 = 328,499.55/x
  3. Step 3: Cross multiply
    1,288,045.80x = 1,932,068.70 × 328,499.55
  4. Step 4: Simplify right side
    1,288,045.80x = 634,683,698,519.09
  5. Step 5: Solve for x
    x = 634,683,698,519.09/1,288,045.80
  6. Step 6: Final answer
    x = 492,749.33

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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.