Finding the Fourth Proportional to 745,878.50, 1,029,042.33 and 487,902.71
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Solution
The fourth proportional to 745,878.50, 1,029,042.33 and 487,902.71 is: 673,129.12
Step by Step Solution
- Step 1: Write the proportion equation
745,878.50 : 1,029,042.33 = 487,902.71 : x - Step 2: Convert to fraction form
745,878.50/1,029,042.33 = 487,902.71/x - Step 3: Cross multiply
745,878.50x = 1,029,042.33 × 487,902.71 - Step 4: Simplify right side
745,878.50x = 502,072,533,926.99 - Step 5: Solve for x
x = 502,072,533,926.99/745,878.50 - Step 6: Final answer
x = 673,129.12
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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.