Finding the Fourth Proportional to 513,818.65, 769,730.98 and 378,637.48
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Solution
The fourth proportional to 513,818.65, 769,730.98 and 378,637.48 is: 567,221.53
Step by Step Solution
- Step 1: Write the proportion equation
513,818.65 : 769,730.98 = 378,637.48 : x - Step 2: Convert to fraction form
513,818.65/769,730.98 = 378,637.48/x - Step 3: Cross multiply
513,818.65x = 769,730.98 × 378,637.48 - Step 4: Simplify right side
513,818.65x = 291,448,998,545.13 - Step 5: Solve for x
x = 291,448,998,545.13/513,818.65 - Step 6: Final answer
x = 567,221.53
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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.