Finding the Fourth Proportional to 956,974.23, 1,320,612.30 and 521,409.71
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Solution
The fourth proportional to 956,974.23, 1,320,612.30 and 521,409.71 is: 719,538.79
Step by Step Solution
- Step 1: Write the proportion equation
956,974.23 : 1,320,612.30 = 521,409.71 : x - Step 2: Convert to fraction form
956,974.23/1,320,612.30 = 521,409.71/x - Step 3: Cross multiply
956,974.23x = 1,320,612.30 × 521,409.71 - Step 4: Simplify right side
956,974.23x = 688,580,079,666.96 - Step 5: Solve for x
x = 688,580,079,666.96/956,974.23 - Step 6: Final answer
x = 719,538.79
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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.