Home / 990,729.45-1,485,625.73-383,802.03

Finding the Fourth Proportional to 990,729.45, 1,485,625.73 and 383,802.03

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Solution

The fourth proportional to 990,729.45, 1,485,625.73 and 383,802.03 is: 575,521.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,729.45 : 1,485,625.73 = 383,802.03 : x
  2. Step 2: Convert to fraction form
    990,729.45/1,485,625.73 = 383,802.03/x
  3. Step 3: Cross multiply
    990,729.45x = 1,485,625.73 × 383,802.03
  4. Step 4: Simplify right side
    990,729.45x = 570,186,169,075.22
  5. Step 5: Solve for x
    x = 570,186,169,075.22/990,729.45
  6. Step 6: Final answer
    x = 575,521.57

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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.