Finding the Fourth Proportional to 2,124,553.68, 2,931,792.12 and 1,206,779.94
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Solution
The fourth proportional to 2,124,553.68, 2,931,792.12 and 1,206,779.94 is: 1,665,304.08
Step by Step Solution
- Step 1: Write the proportion equation
2,124,553.68 : 2,931,792.12 = 1,206,779.94 : x - Step 2: Convert to fraction form
2,124,553.68/2,931,792.12 = 1,206,779.94/x - Step 3: Cross multiply
2,124,553.68x = 2,931,792.12 × 1,206,779.94 - Step 4: Simplify right side
2,124,553.68x = 3,538,027,918,666.07 - Step 5: Solve for x
x = 3,538,027,918,666.07/2,124,553.68 - Step 6: Final answer
x = 1,665,304.08
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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.