Finding the Fourth Proportional to 390,752.76, 586,122.68 and 124,509.66
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Solution
The fourth proportional to 390,752.76, 586,122.68 and 124,509.66 is: 186,762.43
Step by Step Solution
- Step 1: Write the proportion equation
390,752.76 : 586,122.68 = 124,509.66 : x - Step 2: Convert to fraction form
390,752.76/586,122.68 = 124,509.66/x - Step 3: Cross multiply
390,752.76x = 586,122.68 × 124,509.66 - Step 4: Simplify right side
390,752.76x = 72,977,935,605.09 - Step 5: Solve for x
x = 72,977,935,605.09/390,752.76 - Step 6: Final answer
x = 186,762.43
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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.