Finding the Fourth Proportional to 905,263.37, 1,248,743.79 and 565,141.13
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Solution
The fourth proportional to 905,263.37, 1,248,743.79 and 565,141.13 is: 779,570.34
Step by Step Solution
- Step 1: Write the proportion equation
905,263.37 : 1,248,743.79 = 565,141.13 : x - Step 2: Convert to fraction form
905,263.37/1,248,743.79 = 565,141.13/x - Step 3: Cross multiply
905,263.37x = 1,248,743.79 × 565,141.13 - Step 4: Simplify right side
905,263.37x = 705,716,470,317.36 - Step 5: Solve for x
x = 705,716,470,317.36/905,263.37 - Step 6: Final answer
x = 779,570.34
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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.