Finding the Fourth Proportional to 817,766.96, 1,128,518.52 and 455,183.12
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Solution
The fourth proportional to 817,766.96, 1,128,518.52 and 455,183.12 is: 628,152.77
Step by Step Solution
- Step 1: Write the proportion equation
817,766.96 : 1,128,518.52 = 455,183.12 : x - Step 2: Convert to fraction form
817,766.96/1,128,518.52 = 455,183.12/x - Step 3: Cross multiply
817,766.96x = 1,128,518.52 × 455,183.12 - Step 4: Simplify right side
817,766.96x = 513,682,580,911.38 - Step 5: Solve for x
x = 513,682,580,911.38/817,766.96 - Step 6: Final answer
x = 628,152.77
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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.