Finding the Fourth Proportional to 390,680.91, 586,064.34 and 124,348.05
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Solution
The fourth proportional to 390,680.91, 586,064.34 and 124,348.05 is: 186,535.75
Step by Step Solution
- Step 1: Write the proportion equation
390,680.91 : 586,064.34 = 124,348.05 : x - Step 2: Convert to fraction form
390,680.91/586,064.34 = 124,348.05/x - Step 3: Cross multiply
390,680.91x = 586,064.34 × 124,348.05 - Step 4: Simplify right side
390,680.91x = 72,875,957,853.54 - Step 5: Solve for x
x = 72,875,957,853.54/390,680.91 - Step 6: Final answer
x = 186,535.75
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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.