Finding the Fourth Proportional to 1,219,726.91, 1,683,247.49 and 710,462.09
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Solution
The fourth proportional to 1,219,726.91, 1,683,247.49 and 710,462.09 is: 980,451.86
Step by Step Solution
- Step 1: Write the proportion equation
1,219,726.91 : 1,683,247.49 = 710,462.09 : x - Step 2: Convert to fraction form
1,219,726.91/1,683,247.49 = 710,462.09/x - Step 3: Cross multiply
1,219,726.91x = 1,683,247.49 × 710,462.09 - Step 4: Simplify right side
1,219,726.91x = 1,195,883,517,764.11 - Step 5: Solve for x
x = 1,195,883,517,764.11/1,219,726.91 - Step 6: Final answer
x = 980,451.86
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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.