Finding the Fourth Proportional to 695,947.05, 960,486.89 and 390,106.17
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Solution
The fourth proportional to 695,947.05, 960,486.89 and 390,106.17 is: 538,391.33
Step by Step Solution
- Step 1: Write the proportion equation
695,947.05 : 960,486.89 = 390,106.17 : x - Step 2: Convert to fraction form
695,947.05/960,486.89 = 390,106.17/x - Step 3: Cross multiply
695,947.05x = 960,486.89 × 390,106.17 - Step 4: Simplify right side
695,947.05x = 374,691,860,042.58 - Step 5: Solve for x
x = 374,691,860,042.58/695,947.05 - Step 6: Final answer
x = 538,391.33
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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.