Finding the Fourth Proportional to 1,121,497.58, 1,547,646.75 and 638,052.32
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Solution
The fourth proportional to 1,121,497.58, 1,547,646.75 and 638,052.32 is: 880,500.88
Step by Step Solution
- Step 1: Write the proportion equation
1,121,497.58 : 1,547,646.75 = 638,052.32 : x - Step 2: Convert to fraction form
1,121,497.58/1,547,646.75 = 638,052.32/x - Step 3: Cross multiply
1,121,497.58x = 1,547,646.75 × 638,052.32 - Step 4: Simplify right side
1,121,497.58x = 987,479,603,247.08 - Step 5: Solve for x
x = 987,479,603,247.08/1,121,497.58 - Step 6: Final answer
x = 880,500.88
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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.