Finding the Fourth Proportional to 913,503.18, 1,370,648.70 and 381,129.06
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Solution
The fourth proportional to 913,503.18, 1,370,648.70 and 381,129.06 is: 571,857.94
Step by Step Solution
- Step 1: Write the proportion equation
913,503.18 : 1,370,648.70 = 381,129.06 : x - Step 2: Convert to fraction form
913,503.18/1,370,648.70 = 381,129.06/x - Step 3: Cross multiply
913,503.18x = 1,370,648.70 × 381,129.06 - Step 4: Simplify right side
913,503.18x = 522,394,050,621.22 - Step 5: Solve for x
x = 522,394,050,621.22/913,503.18 - Step 6: Final answer
x = 571,857.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.