Finding the Fourth Proportional to 758,356.84, 1,046,538.66 and 418,830.76
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Solution
The fourth proportional to 758,356.84, 1,046,538.66 and 418,830.76 is: 577,989.88
Step by Step Solution
- Step 1: Write the proportion equation
758,356.84 : 1,046,538.66 = 418,830.76 : x - Step 2: Convert to fraction form
758,356.84/1,046,538.66 = 418,830.76/x - Step 3: Cross multiply
758,356.84x = 1,046,538.66 × 418,830.76 - Step 4: Simplify right side
758,356.84x = 438,322,582,337.18 - Step 5: Solve for x
x = 438,322,582,337.18/758,356.84 - Step 6: Final answer
x = 577,989.88
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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.