Finding the Fourth Proportional to 606,643.80, 909,965.70 and 488,545.80
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Solution
The fourth proportional to 606,643.80, 909,965.70 and 488,545.80 is: 732,818.70
Step by Step Solution
- Step 1: Write the proportion equation
606,643.80 : 909,965.70 = 488,545.80 : x - Step 2: Convert to fraction form
606,643.80/909,965.70 = 488,545.80/x - Step 3: Cross multiply
606,643.80x = 909,965.70 × 488,545.80 - Step 4: Simplify right side
606,643.80x = 444,559,920,879.06 - Step 5: Solve for x
x = 444,559,920,879.06/606,643.80 - Step 6: Final answer
x = 732,818.70
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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.