Finding the Fourth Proportional to 745,103.68, 1,112,246 and 689,594.56
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Solution
The fourth proportional to 745,103.68, 1,112,246 and 689,594.56 is: 1,029,385.32
Step by Step Solution
- Step 1: Write the proportion equation
745,103.68 : 1,112,246 = 689,594.56 : x - Step 2: Convert to fraction form
745,103.68/1,112,246 = 689,594.56/x - Step 3: Cross multiply
745,103.68x = 1,112,246 × 689,594.56 - Step 4: Simplify right side
745,103.68x = 766,998,790,981.76 - Step 5: Solve for x
x = 766,998,790,981.76/745,103.68 - Step 6: Final answer
x = 1,029,385.32
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.