Finding the Fourth Proportional to 390,998.94, 586,488.15 and 124,775.70
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Solution
The fourth proportional to 390,998.94, 586,488.15 and 124,775.70 is: 187,160.28
Step by Step Solution
- Step 1: Write the proportion equation
390,998.94 : 586,488.15 = 124,775.70 : x - Step 2: Convert to fraction form
390,998.94/586,488.15 = 124,775.70/x - Step 3: Cross multiply
390,998.94x = 586,488.15 × 124,775.70 - Step 4: Simplify right side
390,998.94x = 73,179,469,457.96 - Step 5: Solve for x
x = 73,179,469,457.96/390,998.94 - Step 6: Final answer
x = 187,160.28
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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.