Finding the Fourth Proportional to 1,261,276.69, 1,740,602.55 and 717,398.50
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Solution
The fourth proportional to 1,261,276.69, 1,740,602.55 and 717,398.50 is: 990,033.08
Step by Step Solution
- Step 1: Write the proportion equation
1,261,276.69 : 1,740,602.55 = 717,398.50 : x - Step 2: Convert to fraction form
1,261,276.69/1,740,602.55 = 717,398.50/x - Step 3: Cross multiply
1,261,276.69x = 1,740,602.55 × 717,398.50 - Step 4: Simplify right side
1,261,276.69x = 1,248,705,649,120.05 - Step 5: Solve for x
x = 1,248,705,649,120.05/1,261,276.69 - Step 6: Final answer
x = 990,033.08
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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.