Finding the Fourth Proportional to 911,943.96, 1,257,829.98 and 640,072.50
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Solution
The fourth proportional to 911,943.96, 1,257,829.98 and 640,072.50 is: 882,841.95
Step by Step Solution
- Step 1: Write the proportion equation
911,943.96 : 1,257,829.98 = 640,072.50 : x - Step 2: Convert to fraction form
911,943.96/1,257,829.98 = 640,072.50/x - Step 3: Cross multiply
911,943.96x = 1,257,829.98 × 640,072.50 - Step 4: Simplify right side
911,943.96x = 805,102,379,873.55 - Step 5: Solve for x
x = 805,102,379,873.55/911,943.96 - Step 6: Final answer
x = 882,841.95
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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.