Home / 989,509.89-1,485,224.63-477,535.33

Finding the Fourth Proportional to 989,509.89, 1,485,224.63 and 477,535.33

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Solution

The fourth proportional to 989,509.89, 1,485,224.63 and 477,535.33 is: 716,766.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,509.89 : 1,485,224.63 = 477,535.33 : x
  2. Step 2: Convert to fraction form
    989,509.89/1,485,224.63 = 477,535.33/x
  3. Step 3: Cross multiply
    989,509.89x = 1,485,224.63 × 477,535.33
  4. Step 4: Simplify right side
    989,509.89x = 709,247,231,291.96
  5. Step 5: Solve for x
    x = 709,247,231,291.96/989,509.89
  6. Step 6: Final answer
    x = 716,766.19

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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.