Finding the Fourth Proportional to 1,272,654.19, 1,756,217.59 and 699,690.19
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Solution
The fourth proportional to 1,272,654.19, 1,756,217.59 and 699,690.19 is: 965,547.62
Step by Step Solution
- Step 1: Write the proportion equation
1,272,654.19 : 1,756,217.59 = 699,690.19 : x - Step 2: Convert to fraction form
1,272,654.19/1,756,217.59 = 699,690.19/x - Step 3: Cross multiply
1,272,654.19x = 1,756,217.59 × 699,690.19 - Step 4: Simplify right side
1,272,654.19x = 1,228,808,219,228.44 - Step 5: Solve for x
x = 1,228,808,219,228.44/1,272,654.19 - Step 6: Final answer
x = 965,547.62
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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.