Finding the Fourth Proportional to 1,272,389.76, 1,755,919.68 and 699,454.08
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Solution
The fourth proportional to 1,272,389.76, 1,755,919.68 and 699,454.08 is: 965,258.62
Step by Step Solution
- Step 1: Write the proportion equation
1,272,389.76 : 1,755,919.68 = 699,454.08 : x - Step 2: Convert to fraction form
1,272,389.76/1,755,919.68 = 699,454.08/x - Step 3: Cross multiply
1,272,389.76x = 1,755,919.68 × 699,454.08 - Step 4: Simplify right side
1,272,389.76x = 1,228,185,184,328.29 - Step 5: Solve for x
x = 1,228,185,184,328.29/1,272,389.76 - Step 6: Final answer
x = 965,258.62
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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.