Finding the Fourth Proportional to 1,121,158.05, 1,547,248.41 and 631,296.02
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Solution
The fourth proportional to 1,121,158.05, 1,547,248.41 and 631,296.02 is: 871,216.83
Step by Step Solution
- Step 1: Write the proportion equation
1,121,158.05 : 1,547,248.41 = 631,296.02 : x - Step 2: Convert to fraction form
1,121,158.05/1,547,248.41 = 631,296.02/x - Step 3: Cross multiply
1,121,158.05x = 1,547,248.41 × 631,296.02 - Step 4: Simplify right side
1,121,158.05x = 976,771,752,291.61 - Step 5: Solve for x
x = 976,771,752,291.61/1,121,158.05 - Step 6: Final answer
x = 871,216.83
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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.