Finding the Fourth Proportional to 1,681,378.88, 2,320,354.12 and 956,331.07
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Solution
The fourth proportional to 1,681,378.88, 2,320,354.12 and 956,331.07 is: 1,319,766.03
Step by Step Solution
- Step 1: Write the proportion equation
1,681,378.88 : 2,320,354.12 = 956,331.07 : x - Step 2: Convert to fraction form
1,681,378.88/2,320,354.12 = 956,331.07/x - Step 3: Cross multiply
1,681,378.88x = 2,320,354.12 × 956,331.07 - Step 4: Simplify right side
1,681,378.88x = 2,219,026,730,166.80 - Step 5: Solve for x
x = 2,219,026,730,166.80/1,681,378.88 - Step 6: Final answer
x = 1,319,766.03
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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.