Finding the Fourth Proportional to 1,369,445.98, 1,889,495.91 and 885,428.71
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Solution
The fourth proportional to 1,369,445.98, 1,889,495.91 and 885,428.71 is: 1,221,672.08
Step by Step Solution
- Step 1: Write the proportion equation
1,369,445.98 : 1,889,495.91 = 885,428.71 : x - Step 2: Convert to fraction form
1,369,445.98/1,889,495.91 = 885,428.71/x - Step 3: Cross multiply
1,369,445.98x = 1,889,495.91 × 885,428.71 - Step 4: Simplify right side
1,369,445.98x = 1,673,013,916,694.10 - Step 5: Solve for x
x = 1,673,013,916,694.10/1,369,445.98 - Step 6: Final answer
x = 1,221,672.08
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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.