Finding the Fourth Proportional to 1,409,256.05, 2,115,378.90 and 1,248,195.65
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Solution
The fourth proportional to 1,409,256.05, 2,115,378.90 and 1,248,195.65 is: 1,873,617.46
Step by Step Solution
- Step 1: Write the proportion equation
1,409,256.05 : 2,115,378.90 = 1,248,195.65 : x - Step 2: Convert to fraction form
1,409,256.05/2,115,378.90 = 1,248,195.65/x - Step 3: Cross multiply
1,409,256.05x = 2,115,378.90 × 1,248,195.65 - Step 4: Simplify right side
1,409,256.05x = 2,640,406,734,840.81 - Step 5: Solve for x
x = 2,640,406,734,840.81/1,409,256.05 - Step 6: Final answer
x = 1,873,617.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.