Finding the Fourth Proportional to 1,403,708.21, 1,937,123.15 and 759,128.41
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Solution
The fourth proportional to 1,403,708.21, 1,937,123.15 and 759,128.41 is: 1,047,600.35
Step by Step Solution
- Step 1: Write the proportion equation
1,403,708.21 : 1,937,123.15 = 759,128.41 : x - Step 2: Convert to fraction form
1,403,708.21/1,937,123.15 = 759,128.41/x - Step 3: Cross multiply
1,403,708.21x = 1,937,123.15 × 759,128.41 - Step 4: Simplify right side
1,403,708.21x = 1,470,525,208,833.23 - Step 5: Solve for x
x = 1,470,525,208,833.23/1,403,708.21 - Step 6: Final answer
x = 1,047,600.35
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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.