Finding the Fourth Proportional to 3,128,916.68, 4,317,548.12 and 1,752,068.96
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Solution
The fourth proportional to 3,128,916.68, 4,317,548.12 and 1,752,068.96 is: 2,417,655.32
Step by Step Solution
- Step 1: Write the proportion equation
3,128,916.68 : 4,317,548.12 = 1,752,068.96 : x - Step 2: Convert to fraction form
3,128,916.68/4,317,548.12 = 1,752,068.96/x - Step 3: Cross multiply
3,128,916.68x = 4,317,548.12 × 1,752,068.96 - Step 4: Simplify right side
3,128,916.68x = 7,564,642,044,358.36 - Step 5: Solve for x
x = 7,564,642,044,358.36/3,128,916.68 - Step 6: Final answer
x = 2,417,655.32
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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.