Finding the Fourth Proportional to 911,257.56, 1,366,374.42 and 378,420.12
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Solution
The fourth proportional to 911,257.56, 1,366,374.42 and 378,420.12 is: 567,417.59
Step by Step Solution
- Step 1: Write the proportion equation
911,257.56 : 1,366,374.42 = 378,420.12 : x - Step 2: Convert to fraction form
911,257.56/1,366,374.42 = 378,420.12/x - Step 3: Cross multiply
911,257.56x = 1,366,374.42 × 378,420.12 - Step 4: Simplify right side
911,257.56x = 517,063,571,981.33 - Step 5: Solve for x
x = 517,063,571,981.33/911,257.56 - Step 6: Final answer
x = 567,417.59
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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.