Finding the Fourth Proportional to 1,298,257.93, 1,791,502.09 and 717,474.12
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Solution
The fourth proportional to 1,298,257.93, 1,791,502.09 and 717,474.12 is: 990,062.42
Step by Step Solution
- Step 1: Write the proportion equation
1,298,257.93 : 1,791,502.09 = 717,474.12 : x - Step 2: Convert to fraction form
1,298,257.93/1,791,502.09 = 717,474.12/x - Step 3: Cross multiply
1,298,257.93x = 1,791,502.09 × 717,474.12 - Step 4: Simplify right side
1,298,257.93x = 1,285,356,385,500.91 - Step 5: Solve for x
x = 1,285,356,385,500.91/1,298,257.93 - Step 6: Final answer
x = 990,062.42
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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.