Finding the Fourth Proportional to 708,402.19, 977,586.42 and 386,111.29
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Solution
The fourth proportional to 708,402.19, 977,586.42 and 386,111.29 is: 532,828.89
Step by Step Solution
- Step 1: Write the proportion equation
708,402.19 : 977,586.42 = 386,111.29 : x - Step 2: Convert to fraction form
708,402.19/977,586.42 = 386,111.29/x - Step 3: Cross multiply
708,402.19x = 977,586.42 × 386,111.29 - Step 4: Simplify right side
708,402.19x = 377,457,153,712.68 - Step 5: Solve for x
x = 377,457,153,712.68/708,402.19 - Step 6: Final answer
x = 532,828.89
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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.