Finding the Fourth Proportional to 714,154.05, 985,529.88 and 391,869.53
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Solution
The fourth proportional to 714,154.05, 985,529.88 and 391,869.53 is: 540,778.46
Step by Step Solution
- Step 1: Write the proportion equation
714,154.05 : 985,529.88 = 391,869.53 : x - Step 2: Convert to fraction form
714,154.05/985,529.88 = 391,869.53/x - Step 3: Cross multiply
714,154.05x = 985,529.88 × 391,869.53 - Step 4: Simplify right side
714,154.05x = 386,199,125,948.91 - Step 5: Solve for x
x = 386,199,125,948.91/714,154.05 - Step 6: Final answer
x = 540,778.46
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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.