Finding the Fourth Proportional to 1,139,994.96, 1,573,135.56 and 623,737.68
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Solution
The fourth proportional to 1,139,994.96, 1,573,135.56 and 623,737.68 is: 860,726.55
Step by Step Solution
- Step 1: Write the proportion equation
1,139,994.96 : 1,573,135.56 = 623,737.68 : x - Step 2: Convert to fraction form
1,139,994.96/1,573,135.56 = 623,737.68/x - Step 3: Cross multiply
1,139,994.96x = 1,573,135.56 × 623,737.68 - Step 4: Simplify right side
1,139,994.96x = 981,223,924,519.90 - Step 5: Solve for x
x = 981,223,924,519.90/1,139,994.96 - Step 6: Final answer
x = 860,726.55
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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.