Finding the Fourth Proportional to 921,720.84, 1,382,655.08 and 705,890.67
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Solution
The fourth proportional to 921,720.84, 1,382,655.08 and 705,890.67 is: 1,058,892.54
Step by Step Solution
- Step 1: Write the proportion equation
921,720.84 : 1,382,655.08 = 705,890.67 : x - Step 2: Convert to fraction form
921,720.84/1,382,655.08 = 705,890.67/x - Step 3: Cross multiply
921,720.84x = 1,382,655.08 × 705,890.67 - Step 4: Simplify right side
921,720.84x = 976,003,317,379.87 - Step 5: Solve for x
x = 976,003,317,379.87/921,720.84 - Step 6: Final answer
x = 1,058,892.54
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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.