Finding the Fourth Proportional to 714,319.95, 985,730.67 and 392,035.53
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Solution
The fourth proportional to 714,319.95, 985,730.67 and 392,035.53 is: 540,992.09
Step by Step Solution
- Step 1: Write the proportion equation
714,319.95 : 985,730.67 = 392,035.53 : x - Step 2: Convert to fraction form
714,319.95/985,730.67 = 392,035.53/x - Step 3: Cross multiply
714,319.95x = 985,730.67 × 392,035.53 - Step 4: Simplify right side
714,319.95x = 386,441,445,650.71 - Step 5: Solve for x
x = 386,441,445,650.71/714,319.95 - Step 6: Final answer
x = 540,992.09
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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.