Finding the Fourth Proportional to 612,302.99, 918,457.40 and 185,842.51
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Solution
The fourth proportional to 612,302.99, 918,457.40 and 185,842.51 is: 278,764.65
Step by Step Solution
- Step 1: Write the proportion equation
612,302.99 : 918,457.40 = 185,842.51 : x - Step 2: Convert to fraction form
612,302.99/918,457.40 = 185,842.51/x - Step 3: Cross multiply
612,302.99x = 918,457.40 × 185,842.51 - Step 4: Simplify right side
612,302.99x = 170,688,426,712.54 - Step 5: Solve for x
x = 170,688,426,712.54/612,302.99 - Step 6: Final answer
x = 278,764.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.