Finding the Fourth Proportional to 665,860.68, 999,042.78 and 399,806.28
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Solution
The fourth proportional to 665,860.68, 999,042.78 and 399,806.28 is: 599,860.59
Step by Step Solution
- Step 1: Write the proportion equation
665,860.68 : 999,042.78 = 399,806.28 : x - Step 2: Convert to fraction form
665,860.68/999,042.78 = 399,806.28/x - Step 3: Cross multiply
665,860.68x = 999,042.78 × 399,806.28 - Step 4: Simplify right side
665,860.68x = 399,423,577,432.66 - Step 5: Solve for x
x = 399,423,577,432.66/665,860.68 - Step 6: Final answer
x = 599,860.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.