Finding the Fourth Proportional to 564,331.36, 778,799.73 and 309,691.66
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Solution
The fourth proportional to 564,331.36, 778,799.73 and 309,691.66 is: 427,386.81
Step by Step Solution
- Step 1: Write the proportion equation
564,331.36 : 778,799.73 = 309,691.66 : x - Step 2: Convert to fraction form
564,331.36/778,799.73 = 309,691.66/x - Step 3: Cross multiply
564,331.36x = 778,799.73 × 309,691.66 - Step 4: Simplify right side
564,331.36x = 241,187,781,191.25 - Step 5: Solve for x
x = 241,187,781,191.25/564,331.36 - Step 6: Final answer
x = 427,386.81
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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.