Finding the Fourth Proportional to 684,574.13, 944,708.06 and 378,645.03
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Solution
The fourth proportional to 684,574.13, 944,708.06 and 378,645.03 is: 522,527.80
Step by Step Solution
- Step 1: Write the proportion equation
684,574.13 : 944,708.06 = 378,645.03 : x - Step 2: Convert to fraction form
684,574.13/944,708.06 = 378,645.03/x - Step 3: Cross multiply
684,574.13x = 944,708.06 × 378,645.03 - Step 4: Simplify right side
684,574.13x = 357,709,012,666.55 - Step 5: Solve for x
x = 357,709,012,666.55/684,574.13 - Step 6: Final answer
x = 522,527.80
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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.