Finding the Fourth Proportional to 559,009.76, 838,504.71 and 138,285.63
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Solution
The fourth proportional to 559,009.76, 838,504.71 and 138,285.63 is: 207,425.99
Step by Step Solution
- Step 1: Write the proportion equation
559,009.76 : 838,504.71 = 138,285.63 : x - Step 2: Convert to fraction form
559,009.76/838,504.71 = 138,285.63/x - Step 3: Cross multiply
559,009.76x = 838,504.71 × 138,285.63 - Step 4: Simplify right side
559,009.76x = 115,953,152,080.32 - Step 5: Solve for x
x = 115,953,152,080.32/559,009.76 - Step 6: Final answer
x = 207,425.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.