Finding the Fourth Proportional to 559,098.84, 771,588.86 and 421,030.59
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Solution
The fourth proportional to 559,098.84, 771,588.86 and 421,030.59 is: 581,046.66
Step by Step Solution
- Step 1: Write the proportion equation
559,098.84 : 771,588.86 = 421,030.59 : x - Step 2: Convert to fraction form
559,098.84/771,588.86 = 421,030.59/x - Step 3: Cross multiply
559,098.84x = 771,588.86 × 421,030.59 - Step 4: Simplify right side
559,098.84x = 324,862,512,963.23 - Step 5: Solve for x
x = 324,862,512,963.23/559,098.84 - Step 6: Final answer
x = 581,046.66
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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.