Finding the Fourth Proportional to 559,943.07, 772,787.04 and 318,261.97
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Solution
The fourth proportional to 559,943.07, 772,787.04 and 318,261.97 is: 439,238.81
Step by Step Solution
- Step 1: Write the proportion equation
559,943.07 : 772,787.04 = 318,261.97 : x - Step 2: Convert to fraction form
559,943.07/772,787.04 = 318,261.97/x - Step 3: Cross multiply
559,943.07x = 772,787.04 × 318,261.97 - Step 4: Simplify right side
559,943.07x = 245,948,725,385.75 - Step 5: Solve for x
x = 245,948,725,385.75/559,943.07 - Step 6: Final answer
x = 439,238.81
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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.