Finding the Fourth Proportional to 761,438.36, 1,050,786.17 and 417,219.59
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Solution
The fourth proportional to 761,438.36, 1,050,786.17 and 417,219.59 is: 575,763.70
Step by Step Solution
- Step 1: Write the proportion equation
761,438.36 : 1,050,786.17 = 417,219.59 : x - Step 2: Convert to fraction form
761,438.36/1,050,786.17 = 417,219.59/x - Step 3: Cross multiply
761,438.36x = 1,050,786.17 × 417,219.59 - Step 4: Simplify right side
761,438.36x = 438,408,567,685.04 - Step 5: Solve for x
x = 438,408,567,685.04/761,438.36 - Step 6: Final answer
x = 575,763.70
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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.