Finding the Fourth Proportional to 939,798.78, 1,296,923.43 and 510,078.99
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Solution
The fourth proportional to 939,798.78, 1,296,923.43 and 510,078.99 is: 703,909.61
Step by Step Solution
- Step 1: Write the proportion equation
939,798.78 : 1,296,923.43 = 510,078.99 : x - Step 2: Convert to fraction form
939,798.78/1,296,923.43 = 510,078.99/x - Step 3: Cross multiply
939,798.78x = 1,296,923.43 × 510,078.99 - Step 4: Simplify right side
939,798.78x = 661,533,393,281.74 - Step 5: Solve for x
x = 661,533,393,281.74/939,798.78 - Step 6: Final answer
x = 703,909.61
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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.