Finding the Fourth Proportional to 1,478,072.05, 2,216,419.11 and 767,909.41
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Solution
The fourth proportional to 1,478,072.05, 2,216,419.11 and 767,909.41 is: 1,151,506.17
Step by Step Solution
- Step 1: Write the proportion equation
1,478,072.05 : 2,216,419.11 = 767,909.41 : x - Step 2: Convert to fraction form
1,478,072.05/2,216,419.11 = 767,909.41/x - Step 3: Cross multiply
1,478,072.05x = 2,216,419.11 × 767,909.41 - Step 4: Simplify right side
1,478,072.05x = 1,702,009,091,072.83 - Step 5: Solve for x
x = 1,702,009,091,072.83/1,478,072.05 - Step 6: Final answer
x = 1,151,506.17
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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.