Finding the Fourth Proportional to 458,660.64, 684,636.12 and 424,889.76
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Solution
The fourth proportional to 458,660.64, 684,636.12 and 424,889.76 is: 634,226.81
Step by Step Solution
- Step 1: Write the proportion equation
458,660.64 : 684,636.12 = 424,889.76 : x - Step 2: Convert to fraction form
458,660.64/684,636.12 = 424,889.76/x - Step 3: Cross multiply
458,660.64x = 684,636.12 × 424,889.76 - Step 4: Simplify right side
458,660.64x = 290,894,876,714.13 - Step 5: Solve for x
x = 290,894,876,714.13/458,660.64 - Step 6: Final answer
x = 634,226.81
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.