Finding the Fourth Proportional to 1,127,691.24, 1,556,117.64 and 637,636.74
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Solution
The fourth proportional to 1,127,691.24, 1,556,117.64 and 637,636.74 is: 879,884.27
Step by Step Solution
- Step 1: Write the proportion equation
1,127,691.24 : 1,556,117.64 = 637,636.74 : x - Step 2: Convert to fraction form
1,127,691.24/1,556,117.64 = 637,636.74/x - Step 3: Cross multiply
1,127,691.24x = 1,556,117.64 × 637,636.74 - Step 4: Simplify right side
1,127,691.24x = 992,237,779,026.09 - Step 5: Solve for x
x = 992,237,779,026.09/1,127,691.24 - Step 6: Final answer
x = 879,884.27
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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.