Finding the Fourth Proportional to 1,403,709.21, 1,937,124.53 and 759,129.41
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Solution
The fourth proportional to 1,403,709.21, 1,937,124.53 and 759,129.41 is: 1,047,601.73
Step by Step Solution
- Step 1: Write the proportion equation
1,403,709.21 : 1,937,124.53 = 759,129.41 : x - Step 2: Convert to fraction form
1,403,709.21/1,937,124.53 = 759,129.41/x - Step 3: Cross multiply
1,403,709.21x = 1,937,124.53 × 759,129.41 - Step 4: Simplify right side
1,403,709.21x = 1,470,528,201,555.43 - Step 5: Solve for x
x = 1,470,528,201,555.43/1,403,709.21 - Step 6: Final answer
x = 1,047,601.73
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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.