Finding the Fourth Proportional to 1,018,879.08, 1,406,482.14 and 687,800.08
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Solution
The fourth proportional to 1,018,879.08, 1,406,482.14 and 687,800.08 is: 949,453.72
Step by Step Solution
- Step 1: Write the proportion equation
1,018,879.08 : 1,406,482.14 = 687,800.08 : x - Step 2: Convert to fraction form
1,018,879.08/1,406,482.14 = 687,800.08/x - Step 3: Cross multiply
1,018,879.08x = 1,406,482.14 × 687,800.08 - Step 4: Simplify right side
1,018,879.08x = 967,378,528,410.57 - Step 5: Solve for x
x = 967,378,528,410.57/1,018,879.08 - Step 6: Final answer
x = 949,453.72
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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.