Finding the Fourth Proportional to 761,437.86, 1,050,785.47 and 417,219.09
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Solution
The fourth proportional to 761,437.86, 1,050,785.47 and 417,219.09 is: 575,763.01
Step by Step Solution
- Step 1: Write the proportion equation
761,437.86 : 1,050,785.47 = 417,219.09 : x - Step 2: Convert to fraction form
761,437.86/1,050,785.47 = 417,219.09/x - Step 3: Cross multiply
761,437.86x = 1,050,785.47 × 417,219.09 - Step 4: Simplify right side
761,437.86x = 438,407,757,578.62 - Step 5: Solve for x
x = 438,407,757,578.62/761,437.86 - Step 6: Final answer
x = 575,763.01
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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.