Finding the Fourth Proportional to 1,475,115.51, 2,035,722.16 and 821,740.74
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Solution
The fourth proportional to 1,475,115.51, 2,035,722.16 and 821,740.74 is: 1,134,037.18
Step by Step Solution
- Step 1: Write the proportion equation
1,475,115.51 : 2,035,722.16 = 821,740.74 : x - Step 2: Convert to fraction form
1,475,115.51/2,035,722.16 = 821,740.74/x - Step 3: Cross multiply
1,475,115.51x = 2,035,722.16 × 821,740.74 - Step 4: Simplify right side
1,475,115.51x = 1,672,835,834,192.80 - Step 5: Solve for x
x = 1,672,835,834,192.80/1,475,115.51 - Step 6: Final answer
x = 1,134,037.18
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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.