Finding the Fourth Proportional to 1,290,332.46, 1,935,373.50 and 391,781.99
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Solution
The fourth proportional to 1,290,332.46, 1,935,373.50 and 391,781.99 is: 587,634.98
Step by Step Solution
- Step 1: Write the proportion equation
1,290,332.46 : 1,935,373.50 = 391,781.99 : x - Step 2: Convert to fraction form
1,290,332.46/1,935,373.50 = 391,781.99/x - Step 3: Cross multiply
1,290,332.46x = 1,935,373.50 × 391,781.99 - Step 4: Simplify right side
1,290,332.46x = 758,244,480,618.46 - Step 5: Solve for x
x = 758,244,480,618.46/1,290,332.46 - Step 6: Final answer
x = 587,634.98
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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.