Finding the Fourth Proportional to 679,423.76, 937,622.84 and 369,347.20
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Solution
The fourth proportional to 679,423.76, 937,622.84 and 369,347.20 is: 509,708.95
Step by Step Solution
- Step 1: Write the proportion equation
679,423.76 : 937,622.84 = 369,347.20 : x - Step 2: Convert to fraction form
679,423.76/937,622.84 = 369,347.20/x - Step 3: Cross multiply
679,423.76x = 937,622.84 × 369,347.20 - Step 4: Simplify right side
679,423.76x = 346,308,370,610.05 - Step 5: Solve for x
x = 346,308,370,610.05/679,423.76 - Step 6: Final answer
x = 509,708.95
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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.