Finding the Fourth Proportional to 390,723.08, 586,094.87 and 106,416.05
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Solution
The fourth proportional to 390,723.08, 586,094.87 and 106,416.05 is: 159,626.86
Step by Step Solution
- Step 1: Write the proportion equation
390,723.08 : 586,094.87 = 106,416.05 : x - Step 2: Convert to fraction form
390,723.08/586,094.87 = 106,416.05/x - Step 3: Cross multiply
390,723.08x = 586,094.87 × 106,416.05 - Step 4: Simplify right side
390,723.08x = 62,369,898,326.23 - Step 5: Solve for x
x = 62,369,898,326.23/390,723.08 - Step 6: Final answer
x = 159,626.86
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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.