Finding the Fourth Proportional to 943,393.80, 1,415,090.70 and 628,465.80
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Solution
The fourth proportional to 943,393.80, 1,415,090.70 and 628,465.80 is: 942,698.70
Step by Step Solution
- Step 1: Write the proportion equation
943,393.80 : 1,415,090.70 = 628,465.80 : x - Step 2: Convert to fraction form
943,393.80/1,415,090.70 = 628,465.80/x - Step 3: Cross multiply
943,393.80x = 1,415,090.70 × 628,465.80 - Step 4: Simplify right side
943,393.80x = 889,336,108,848.06 - Step 5: Solve for x
x = 889,336,108,848.06/943,393.80 - Step 6: Final answer
x = 942,698.70
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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.