Finding the Fourth Proportional to 986,539.84, 1,361,428.59 and 533,830.84
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Solution
The fourth proportional to 986,539.84, 1,361,428.59 and 533,830.84 is: 736,688.51
Step by Step Solution
- Step 1: Write the proportion equation
986,539.84 : 1,361,428.59 = 533,830.84 : x - Step 2: Convert to fraction form
986,539.84/1,361,428.59 = 533,830.84/x - Step 3: Cross multiply
986,539.84x = 1,361,428.59 × 533,830.84 - Step 4: Simplify right side
986,539.84x = 726,772,567,799.72 - Step 5: Solve for x
x = 726,772,567,799.72/986,539.84 - Step 6: Final answer
x = 736,688.51
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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.