Finding the Fourth Proportional to 939,477.24, 1,296,814.80 and 557,503.98
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Solution
The fourth proportional to 939,477.24, 1,296,814.80 and 557,503.98 is: 769,555.01
Step by Step Solution
- Step 1: Write the proportion equation
939,477.24 : 1,296,814.80 = 557,503.98 : x - Step 2: Convert to fraction form
939,477.24/1,296,814.80 = 557,503.98/x - Step 3: Cross multiply
939,477.24x = 1,296,814.80 × 557,503.98 - Step 4: Simplify right side
939,477.24x = 722,979,412,322.90 - Step 5: Solve for x
x = 722,979,412,322.90/939,477.24 - Step 6: Final answer
x = 769,555.01
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1.5x scale
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.