Finding the Fourth Proportional to 761,207.20, 1,050,478.56 and 417,038.08
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Solution
The fourth proportional to 761,207.20, 1,050,478.56 and 417,038.08 is: 575,519.47
Step by Step Solution
- Step 1: Write the proportion equation
761,207.20 : 1,050,478.56 = 417,038.08 : x - Step 2: Convert to fraction form
761,207.20/1,050,478.56 = 417,038.08/x - Step 3: Cross multiply
761,207.20x = 1,050,478.56 × 417,038.08 - Step 4: Simplify right side
761,207.20x = 438,089,561,743.57 - Step 5: Solve for x
x = 438,089,561,743.57/761,207.20 - Step 6: Final answer
x = 575,519.47
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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.