Home / 989,266.80-1,483,608.60-390,028.80

Finding the Fourth Proportional to 989,266.80, 1,483,608.60 and 390,028.80

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Solution

The fourth proportional to 989,266.80, 1,483,608.60 and 390,028.80 is: 584,928.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,266.80 : 1,483,608.60 = 390,028.80 : x
  2. Step 2: Convert to fraction form
    989,266.80/1,483,608.60 = 390,028.80/x
  3. Step 3: Cross multiply
    989,266.80x = 1,483,608.60 × 390,028.80
  4. Step 4: Simplify right side
    989,266.80x = 578,650,081,927.68
  5. Step 5: Solve for x
    x = 578,650,081,927.68/989,266.80
  6. Step 6: Final answer
    x = 584,928.23

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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.