Finding the Fourth Proportional to 988,686.34, 1,364,457.09 and 558,970.54
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Solution
The fourth proportional to 988,686.34, 1,364,457.09 and 558,970.54 is: 771,418.89
Step by Step Solution
- Step 1: Write the proportion equation
988,686.34 : 1,364,457.09 = 558,970.54 : x - Step 2: Convert to fraction form
988,686.34/1,364,457.09 = 558,970.54/x - Step 3: Cross multiply
988,686.34x = 1,364,457.09 × 558,970.54 - Step 4: Simplify right side
988,686.34x = 762,691,316,404.13 - Step 5: Solve for x
x = 762,691,316,404.13/988,686.34 - Step 6: Final answer
x = 771,418.89
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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.