Finding the Fourth Proportional to 812,199.86, 1,120,483.97 and 489,730.81
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Solution
The fourth proportional to 812,199.86, 1,120,483.97 and 489,730.81 is: 675,616.37
Step by Step Solution
- Step 1: Write the proportion equation
812,199.86 : 1,120,483.97 = 489,730.81 : x - Step 2: Convert to fraction form
812,199.86/1,120,483.97 = 489,730.81/x - Step 3: Cross multiply
812,199.86x = 1,120,483.97 × 489,730.81 - Step 4: Simplify right side
812,199.86x = 548,735,522,220.12 - Step 5: Solve for x
x = 548,735,522,220.12/812,199.86 - Step 6: Final answer
x = 675,616.37
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.