Finding the Fourth Proportional to 578,556.57, 864,316.38 and 374,490.18
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Solution
The fourth proportional to 578,556.57, 864,316.38 and 374,490.18 is: 559,457.82
Step by Step Solution
- Step 1: Write the proportion equation
578,556.57 : 864,316.38 = 374,490.18 : x - Step 2: Convert to fraction form
578,556.57/864,316.38 = 374,490.18/x - Step 3: Cross multiply
578,556.57x = 864,316.38 × 374,490.18 - Step 4: Simplify right side
578,556.57x = 323,677,996,723.15 - Step 5: Solve for x
x = 323,677,996,723.15/578,556.57 - Step 6: Final answer
x = 559,457.82
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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.