Home / 1,433,555.03-1,978,319.91-788,990.09

Finding the Fourth Proportional to 1,433,555.03, 1,978,319.91 and 788,990.09

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Solution

The fourth proportional to 1,433,555.03, 1,978,319.91 and 788,990.09 is: 1,088,814.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,555.03 : 1,978,319.91 = 788,990.09 : x
  2. Step 2: Convert to fraction form
    1,433,555.03/1,978,319.91 = 788,990.09/x
  3. Step 3: Cross multiply
    1,433,555.03x = 1,978,319.91 × 788,990.09
  4. Step 4: Simplify right side
    1,433,555.03x = 1,560,874,803,839.69
  5. Step 5: Solve for x
    x = 1,560,874,803,839.69/1,433,555.03
  6. Step 6: Final answer
    x = 1,088,814.01

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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.