Finding the Fourth Proportional to 648,192.84, 972,639.18 and 315,768.84
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Solution
The fourth proportional to 648,192.84, 972,639.18 and 315,768.84 is: 473,823.72
Step by Step Solution
- Step 1: Write the proportion equation
648,192.84 : 972,639.18 = 315,768.84 : x - Step 2: Convert to fraction form
648,192.84/972,639.18 = 315,768.84/x - Step 3: Cross multiply
648,192.84x = 972,639.18 × 315,768.84 - Step 4: Simplify right side
648,192.84x = 307,129,145,607.15 - Step 5: Solve for x
x = 307,129,145,607.15/648,192.84 - Step 6: Final answer
x = 473,823.72
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1.5x scale
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.