Finding the Fourth Proportional to 1,316,478.05, 1,974,717.08 and 1,103,901.65
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Solution
The fourth proportional to 1,316,478.05, 1,974,717.08 and 1,103,901.65 is: 1,655,852.48
Step by Step Solution
- Step 1: Write the proportion equation
1,316,478.05 : 1,974,717.08 = 1,103,901.65 : x - Step 2: Convert to fraction form
1,316,478.05/1,974,717.08 = 1,103,901.65/x - Step 3: Cross multiply
1,316,478.05x = 1,974,717.08 × 1,103,901.65 - Step 4: Simplify right side
1,316,478.05x = 2,179,893,437,375.67 - Step 5: Solve for x
x = 2,179,893,437,375.67/1,316,478.05 - Step 6: Final answer
x = 1,655,852.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.