Home / 989,640.44-1,365,703.90-536,931.48

Finding the Fourth Proportional to 989,640.44, 1,365,703.90 and 536,931.48

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Solution

The fourth proportional to 989,640.44, 1,365,703.90 and 536,931.48 is: 740,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,640.44 : 1,365,703.90 = 536,931.48 : x
  2. Step 2: Convert to fraction form
    989,640.44/1,365,703.90 = 536,931.48/x
  3. Step 3: Cross multiply
    989,640.44x = 1,365,703.90 × 536,931.48
  4. Step 4: Simplify right side
    989,640.44x = 733,289,416,268.77
  5. Step 5: Solve for x
    x = 733,289,416,268.77/989,640.44
  6. Step 6: Final answer
    x = 740,965.49

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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.