Finding the Fourth Proportional to 1,127,686.42, 1,556,228.61 and 618,358.42
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Solution
The fourth proportional to 1,127,686.42, 1,556,228.61 and 618,358.42 is: 853,346.33
Step by Step Solution
- Step 1: Write the proportion equation
1,127,686.42 : 1,556,228.61 = 618,358.42 : x - Step 2: Convert to fraction form
1,127,686.42/1,556,228.61 = 618,358.42/x - Step 3: Cross multiply
1,127,686.42x = 1,556,228.61 × 618,358.42 - Step 4: Simplify right side
1,127,686.42x = 962,307,064,438.40 - Step 5: Solve for x
x = 962,307,064,438.40/1,127,686.42 - Step 6: Final answer
x = 853,346.33
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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.