Finding the Fourth Proportional to 420,498.44, 580,283.62 and 229,510.12
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Solution
The fourth proportional to 420,498.44, 580,283.62 and 229,510.12 is: 316,721.66
Step by Step Solution
- Step 1: Write the proportion equation
420,498.44 : 580,283.62 = 229,510.12 : x - Step 2: Convert to fraction form
420,498.44/580,283.62 = 229,510.12/x - Step 3: Cross multiply
420,498.44x = 580,283.62 × 229,510.12 - Step 4: Simplify right side
420,498.44x = 133,180,963,260.23 - Step 5: Solve for x
x = 133,180,963,260.23/420,498.44 - Step 6: Final answer
x = 316,721.66
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1.5x scale
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.