Finding the Fourth Proportional to 1,272,412.84, 1,755,885.09 and 699,448.90
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Solution
The fourth proportional to 1,272,412.84, 1,755,885.09 and 699,448.90 is: 965,214.95
Step by Step Solution
- Step 1: Write the proportion equation
1,272,412.84 : 1,755,885.09 = 699,448.90 : x - Step 2: Convert to fraction form
1,272,412.84/1,755,885.09 = 699,448.90/x - Step 3: Cross multiply
1,272,412.84x = 1,755,885.09 × 699,448.90 - Step 4: Simplify right side
1,272,412.84x = 1,228,151,894,726.90 - Step 5: Solve for x
x = 1,228,151,894,726.90/1,272,412.84 - Step 6: Final answer
x = 965,214.95
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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.