Finding the Fourth Proportional to 1,513,311.19, 2,088,264.80 and 851,122.21
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Solution
The fourth proportional to 1,513,311.19, 2,088,264.80 and 851,122.21 is: 1,174,489.79
Step by Step Solution
- Step 1: Write the proportion equation
1,513,311.19 : 2,088,264.80 = 851,122.21 : x - Step 2: Convert to fraction form
1,513,311.19/2,088,264.80 = 851,122.21/x - Step 3: Cross multiply
1,513,311.19x = 2,088,264.80 × 851,122.21 - Step 4: Simplify right side
1,513,311.19x = 1,777,368,547,385.60 - Step 5: Solve for x
x = 1,777,368,547,385.60/1,513,311.19 - Step 6: Final answer
x = 1,174,489.79
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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.