Finding the Fourth Proportional to 3,228,507.29, 4,455,542.19 and 1,778,202.18
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Solution
The fourth proportional to 3,228,507.29, 4,455,542.19 and 1,778,202.18 is: 2,454,030.34
Step by Step Solution
- Step 1: Write the proportion equation
3,228,507.29 : 4,455,542.19 = 1,778,202.18 : x - Step 2: Convert to fraction form
3,228,507.29/4,455,542.19 = 1,778,202.18/x - Step 3: Cross multiply
3,228,507.29x = 4,455,542.19 × 1,778,202.18 - Step 4: Simplify right side
3,228,507.29x = 7,922,854,835,339.98 - Step 5: Solve for x
x = 7,922,854,835,339.98/3,228,507.29 - Step 6: Final answer
x = 2,454,030.34
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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.