Finding the Fourth Proportional to 1,121,451.30, 1,547,548.74 and 637,970.94
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Solution
The fourth proportional to 1,121,451.30, 1,547,548.74 and 637,970.94 is: 880,369.15
Step by Step Solution
- Step 1: Write the proportion equation
1,121,451.30 : 1,547,548.74 = 637,970.94 : x - Step 2: Convert to fraction form
1,121,451.30/1,547,548.74 = 637,970.94/x - Step 3: Cross multiply
1,121,451.30x = 1,547,548.74 × 637,970.94 - Step 4: Simplify right side
1,121,451.30x = 987,291,124,353.62 - Step 5: Solve for x
x = 987,291,124,353.62/1,121,451.30 - Step 6: Final answer
x = 880,369.15
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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.