Finding the Fourth Proportional to 985,666.24, 1,478,658.80 and 386,302.24
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Solution
The fourth proportional to 985,666.24, 1,478,658.80 and 386,302.24 is: 579,515.85
Step by Step Solution
- Step 1: Write the proportion equation
985,666.24 : 1,478,658.80 = 386,302.24 : x - Step 2: Convert to fraction form
985,666.24/1,478,658.80 = 386,302.24/x - Step 3: Cross multiply
985,666.24x = 1,478,658.80 × 386,302.24 - Step 4: Simplify right side
985,666.24x = 571,209,206,635.71 - Step 5: Solve for x
x = 571,209,206,635.71/985,666.24 - Step 6: Final answer
x = 579,515.85
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1.5x scale
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.