Finding the Fourth Proportional to 1,176,862.10, 1,618,973.26 and 1,031,011.07
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Solution
The fourth proportional to 1,176,862.10, 1,618,973.26 and 1,031,011.07 is: 1,418,330.45
Step by Step Solution
- Step 1: Write the proportion equation
1,176,862.10 : 1,618,973.26 = 1,031,011.07 : x - Step 2: Convert to fraction form
1,176,862.10/1,618,973.26 = 1,031,011.07/x - Step 3: Cross multiply
1,176,862.10x = 1,618,973.26 × 1,031,011.07 - Step 4: Simplify right side
1,176,862.10x = 1,669,179,342,421.59 - Step 5: Solve for x
x = 1,669,179,342,421.59/1,176,862.10 - Step 6: Final answer
x = 1,418,330.45
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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.