Finding the Fourth Proportional to 1,513,312.19, 2,088,266.17 and 851,123.21
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Solution
The fourth proportional to 1,513,312.19, 2,088,266.17 and 851,123.21 is: 1,174,491.17
Step by Step Solution
- Step 1: Write the proportion equation
1,513,312.19 : 2,088,266.17 = 851,123.21 : x - Step 2: Convert to fraction form
1,513,312.19/2,088,266.17 = 851,123.21/x - Step 3: Cross multiply
1,513,312.19x = 2,088,266.17 × 851,123.21 - Step 4: Simplify right side
1,513,312.19x = 1,777,371,805,944.81 - Step 5: Solve for x
x = 1,777,371,805,944.81/1,513,312.19 - Step 6: Final answer
x = 1,174,491.17
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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.