Finding the Fourth Proportional to 489,210.16, 674,823.36 and 307,634.08
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Solution
The fourth proportional to 489,210.16, 674,823.36 and 307,634.08 is: 424,354.77
Step by Step Solution
- Step 1: Write the proportion equation
489,210.16 : 674,823.36 = 307,634.08 : x - Step 2: Convert to fraction form
489,210.16/674,823.36 = 307,634.08/x - Step 3: Cross multiply
489,210.16x = 674,823.36 × 307,634.08 - Step 4: Simplify right side
489,210.16x = 207,598,663,516.11 - Step 5: Solve for x
x = 207,598,663,516.11/489,210.16 - Step 6: Final answer
x = 424,354.77
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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.