Finding the Fourth Proportional to 709,476.95, 979,098.93 and 387,207.71
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Solution
The fourth proportional to 709,476.95, 979,098.93 and 387,207.71 is: 534,357.96
Step by Step Solution
- Step 1: Write the proportion equation
709,476.95 : 979,098.93 = 387,207.71 : x - Step 2: Convert to fraction form
709,476.95/979,098.93 = 387,207.71/x - Step 3: Cross multiply
709,476.95x = 979,098.93 × 387,207.71 - Step 4: Simplify right side
709,476.95x = 379,114,649,653.26 - Step 5: Solve for x
x = 379,114,649,653.26/709,476.95 - Step 6: Final answer
x = 534,357.96
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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.