Finding the Fourth Proportional to 664,733.86, 917,756.95 and 542,518.19
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Solution
The fourth proportional to 664,733.86, 917,756.95 and 542,518.19 is: 749,021.33
Step by Step Solution
- Step 1: Write the proportion equation
664,733.86 : 917,756.95 = 542,518.19 : x - Step 2: Convert to fraction form
664,733.86/917,756.95 = 542,518.19/x - Step 3: Cross multiply
664,733.86x = 917,756.95 × 542,518.19 - Step 4: Simplify right side
664,733.86x = 497,899,837,887.65 - Step 5: Solve for x
x = 497,899,837,887.65/664,733.86 - Step 6: Final answer
x = 749,021.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.