Finding the Fourth Proportional to 4,328,270.40, 6,490,874.70 and 1,487,721.90
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Solution
The fourth proportional to 4,328,270.40, 6,490,874.70 and 1,487,721.90 is: 2,231,056.65
Step by Step Solution
- Step 1: Write the proportion equation
4,328,270.40 : 6,490,874.70 = 1,487,721.90 : x - Step 2: Convert to fraction form
4,328,270.40/6,490,874.70 = 1,487,721.90/x - Step 3: Cross multiply
4,328,270.40x = 6,490,874.70 × 1,487,721.90 - Step 4: Simplify right side
4,328,270.40x = 9,656,616,441,345.93 - Step 5: Solve for x
x = 9,656,616,441,345.93/4,328,270.40 - Step 6: Final answer
x = 2,231,056.65
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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.