Home / 989,106.80-1,485,215.40-569,202.80

Finding the Fourth Proportional to 989,106.80, 1,485,215.40 and 569,202.80

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Solution

The fourth proportional to 989,106.80, 1,485,215.40 and 569,202.80 is: 854,699.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,106.80 : 1,485,215.40 = 569,202.80 : x
  2. Step 2: Convert to fraction form
    989,106.80/1,485,215.40 = 569,202.80/x
  3. Step 3: Cross multiply
    989,106.80x = 1,485,215.40 × 569,202.80
  4. Step 4: Simplify right side
    989,106.80x = 845,388,764,283.12
  5. Step 5: Solve for x
    x = 845,388,764,283.12/989,106.80
  6. Step 6: Final answer
    x = 854,699.17

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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.