Finding the Fourth Proportional to 1,415,438.05, 1,953,359.80 and 803,647.74
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Solution
The fourth proportional to 1,415,438.05, 1,953,359.80 and 803,647.74 is: 1,109,065.27
Step by Step Solution
- Step 1: Write the proportion equation
1,415,438.05 : 1,953,359.80 = 803,647.74 : x - Step 2: Convert to fraction form
1,415,438.05/1,953,359.80 = 803,647.74/x - Step 3: Cross multiply
1,415,438.05x = 1,953,359.80 × 803,647.74 - Step 4: Simplify right side
1,415,438.05x = 1,569,813,179,914.61 - Step 5: Solve for x
x = 1,569,813,179,914.61/1,415,438.05 - Step 6: Final answer
x = 1,109,065.27
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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.