Finding the Fourth Proportional to 1,312,349.58, 1,811,042.01 and 708,737.58
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Solution
The fourth proportional to 1,312,349.58, 1,811,042.01 and 708,737.58 is: 978,057.64
Step by Step Solution
- Step 1: Write the proportion equation
1,312,349.58 : 1,811,042.01 = 708,737.58 : x - Step 2: Convert to fraction form
1,312,349.58/1,811,042.01 = 708,737.58/x - Step 3: Cross multiply
1,312,349.58x = 1,811,042.01 × 708,737.58 - Step 4: Simplify right side
1,312,349.58x = 1,283,553,531,445.74 - Step 5: Solve for x
x = 1,283,553,531,445.74/1,312,349.58 - Step 6: Final answer
x = 978,057.64
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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.