Finding the Fourth Proportional to 1,225,169.84, 1,690,486.62 and 715,773.80
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Solution
The fourth proportional to 1,225,169.84, 1,690,486.62 and 715,773.80 is: 987,623.10
Step by Step Solution
- Step 1: Write the proportion equation
1,225,169.84 : 1,690,486.62 = 715,773.80 : x - Step 2: Convert to fraction form
1,225,169.84/1,690,486.62 = 715,773.80/x - Step 3: Cross multiply
1,225,169.84x = 1,690,486.62 × 715,773.80 - Step 4: Simplify right side
1,225,169.84x = 1,210,006,031,846.56 - Step 5: Solve for x
x = 1,210,006,031,846.56/1,225,169.84 - Step 6: Final answer
x = 987,623.10
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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.