Finding the Fourth Proportional to 998,432.70, 1,497,843.45 and 429,812.70
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Solution
The fourth proportional to 998,432.70, 1,497,843.45 and 429,812.70 is: 644,802.74
Step by Step Solution
- Step 1: Write the proportion equation
998,432.70 : 1,497,843.45 = 429,812.70 : x - Step 2: Convert to fraction form
998,432.70/1,497,843.45 = 429,812.70/x - Step 3: Cross multiply
998,432.70x = 1,497,843.45 × 429,812.70 - Step 4: Simplify right side
998,432.70x = 643,792,137,421.82 - Step 5: Solve for x
x = 643,792,137,421.82/998,432.70 - Step 6: Final answer
x = 644,802.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.