Finding the Fourth Proportional to 862,644.68, 1,190,118.61 and 518,564.31
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Solution
The fourth proportional to 862,644.68, 1,190,118.61 and 518,564.31 is: 715,419.74
Step by Step Solution
- Step 1: Write the proportion equation
862,644.68 : 1,190,118.61 = 518,564.31 : x - Step 2: Convert to fraction form
862,644.68/1,190,118.61 = 518,564.31/x - Step 3: Cross multiply
862,644.68x = 1,190,118.61 × 518,564.31 - Step 4: Simplify right side
862,644.68x = 617,153,032,189.31 - Step 5: Solve for x
x = 617,153,032,189.31/862,644.68 - Step 6: Final answer
x = 715,419.74
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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.