Finding the Fourth Proportional to 1,397,424.15, 1,929,909.24 and 962,971.13
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Solution
The fourth proportional to 1,397,424.15, 1,929,909.24 and 962,971.13 is: 1,329,908.95
Step by Step Solution
- Step 1: Write the proportion equation
1,397,424.15 : 1,929,909.24 = 962,971.13 : x - Step 2: Convert to fraction form
1,397,424.15/1,929,909.24 = 962,971.13/x - Step 3: Cross multiply
1,397,424.15x = 1,929,909.24 × 962,971.13 - Step 4: Simplify right side
1,397,424.15x = 1,858,446,886,465.01 - Step 5: Solve for x
x = 1,858,446,886,465.01/1,397,424.15 - Step 6: Final answer
x = 1,329,908.95
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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.