Finding the Fourth Proportional to 1,170,421.75, 1,615,182.06 and 633,877.75
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Solution
The fourth proportional to 1,170,421.75, 1,615,182.06 and 633,877.75 is: 874,751.32
Step by Step Solution
- Step 1: Write the proportion equation
1,170,421.75 : 1,615,182.06 = 633,877.75 : x - Step 2: Convert to fraction form
1,170,421.75/1,615,182.06 = 633,877.75/x - Step 3: Cross multiply
1,170,421.75x = 1,615,182.06 × 633,877.75 - Step 4: Simplify right side
1,170,421.75x = 1,023,827,970,033.17 - Step 5: Solve for x
x = 1,023,827,970,033.17/1,170,421.75 - Step 6: Final answer
x = 874,751.32
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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.