Finding the Fourth Proportional to 644,510.79, 967,356.68 and 642,099.65
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Solution
The fourth proportional to 644,510.79, 967,356.68 and 642,099.65 is: 963,737.75
Step by Step Solution
- Step 1: Write the proportion equation
644,510.79 : 967,356.68 = 642,099.65 : x - Step 2: Convert to fraction form
644,510.79/967,356.68 = 642,099.65/x - Step 3: Cross multiply
644,510.79x = 967,356.68 × 642,099.65 - Step 4: Simplify right side
644,510.79x = 621,139,377,605.88 - Step 5: Solve for x
x = 621,139,377,605.88/644,510.79 - Step 6: Final answer
x = 963,737.75
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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.