Finding the Fourth Proportional to 862,116.50, 1,189,720.49 and 499,750.71
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Solution
The fourth proportional to 862,116.50, 1,189,720.49 and 499,750.71 is: 689,655.82
Step by Step Solution
- Step 1: Write the proportion equation
862,116.50 : 1,189,720.49 = 499,750.71 : x - Step 2: Convert to fraction form
862,116.50/1,189,720.49 = 499,750.71/x - Step 3: Cross multiply
862,116.50x = 1,189,720.49 × 499,750.71 - Step 4: Simplify right side
862,116.50x = 594,563,657,080.29 - Step 5: Solve for x
x = 594,563,657,080.29/862,116.50 - Step 6: Final answer
x = 689,655.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.