Finding the Fourth Proportional to 390,752.24, 586,121.95 and 124,509.15
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Solution
The fourth proportional to 390,752.24, 586,121.95 and 124,509.15 is: 186,761.68
Step by Step Solution
- Step 1: Write the proportion equation
390,752.24 : 586,121.95 = 124,509.15 : x - Step 2: Convert to fraction form
390,752.24/586,121.95 = 124,509.15/x - Step 3: Cross multiply
390,752.24x = 586,121.95 × 124,509.15 - Step 4: Simplify right side
390,752.24x = 72,977,545,790.84 - Step 5: Solve for x
x = 72,977,545,790.84/390,752.24 - Step 6: Final answer
x = 186,761.68
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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.