Finding the Fourth Proportional to 1,078,179.51, 1,488,365.99 and 696,392.49
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Solution
The fourth proportional to 1,078,179.51, 1,488,365.99 and 696,392.49 is: 961,330.55
Step by Step Solution
- Step 1: Write the proportion equation
1,078,179.51 : 1,488,365.99 = 696,392.49 : x - Step 2: Convert to fraction form
1,078,179.51/1,488,365.99 = 696,392.49/x - Step 3: Cross multiply
1,078,179.51x = 1,488,365.99 × 696,392.49 - Step 4: Simplify right side
1,078,179.51x = 1,036,486,897,807.42 - Step 5: Solve for x
x = 1,036,486,897,807.42/1,078,179.51 - Step 6: Final answer
x = 961,330.55
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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.