Finding the Fourth Proportional to 1,087,274.34, 1,631,487.42 and 790,206.84
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Solution
The fourth proportional to 1,087,274.34, 1,631,487.42 and 790,206.84 is: 1,185,728.82
Step by Step Solution
- Step 1: Write the proportion equation
1,087,274.34 : 1,631,487.42 = 790,206.84 : x - Step 2: Convert to fraction form
1,087,274.34/1,631,487.42 = 790,206.84/x - Step 3: Cross multiply
1,087,274.34x = 1,631,487.42 × 790,206.84 - Step 4: Simplify right side
1,087,274.34x = 1,289,212,518,657.95 - Step 5: Solve for x
x = 1,289,212,518,657.95/1,087,274.34 - Step 6: Final answer
x = 1,185,728.82
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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.