Finding the Fourth Proportional to 386,292.84, 579,476.88 and 119,981.76
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Solution
The fourth proportional to 386,292.84, 579,476.88 and 119,981.76 is: 179,984.32
Step by Step Solution
- Step 1: Write the proportion equation
386,292.84 : 579,476.88 = 119,981.76 : x - Step 2: Convert to fraction form
386,292.84/579,476.88 = 119,981.76/x - Step 3: Cross multiply
386,292.84x = 579,476.88 × 119,981.76 - Step 4: Simplify right side
386,292.84x = 69,526,655,941.71 - Step 5: Solve for x
x = 69,526,655,941.71/386,292.84 - Step 6: Final answer
x = 179,984.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.