Finding the Fourth Proportional to 390,747.74, 586,115.21 and 124,504.65
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Solution
The fourth proportional to 390,747.74, 586,115.21 and 124,504.65 is: 186,754.94
Step by Step Solution
- Step 1: Write the proportion equation
390,747.74 : 586,115.21 = 124,504.65 : x - Step 2: Convert to fraction form
390,747.74/586,115.21 = 124,504.65/x - Step 3: Cross multiply
390,747.74x = 586,115.21 × 124,504.65 - Step 4: Simplify right side
390,747.74x = 72,974,068,458.20 - Step 5: Solve for x
x = 72,974,068,458.20/390,747.74 - Step 6: Final answer
x = 186,754.94
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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.