Finding the Fourth Proportional to 1,299,106.62, 1,791,135.75 and 993,557.82
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Solution
The fourth proportional to 1,299,106.62, 1,791,135.75 and 993,557.82 is: 1,369,862.11
Step by Step Solution
- Step 1: Write the proportion equation
1,299,106.62 : 1,791,135.75 = 993,557.82 : x - Step 2: Convert to fraction form
1,299,106.62/1,791,135.75 = 993,557.82/x - Step 3: Cross multiply
1,299,106.62x = 1,791,135.75 × 993,557.82 - Step 4: Simplify right side
1,299,106.62x = 1,779,596,931,094.07 - Step 5: Solve for x
x = 1,779,596,931,094.07/1,299,106.62 - Step 6: Final answer
x = 1,369,862.11
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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.