Finding the Fourth Proportional to 465,307.91, 698,010.41 and 128,348.62
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Solution
The fourth proportional to 465,307.91, 698,010.41 and 128,348.62 is: 192,536.32
Step by Step Solution
- Step 1: Write the proportion equation
465,307.91 : 698,010.41 = 128,348.62 : x - Step 2: Convert to fraction form
465,307.91/698,010.41 = 128,348.62/x - Step 3: Cross multiply
465,307.91x = 698,010.41 × 128,348.62 - Step 4: Simplify right side
465,307.91x = 89,588,671,444.98 - Step 5: Solve for x
x = 89,588,671,444.98/465,307.91 - Step 6: Final answer
x = 192,536.32
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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.