Finding the Fourth Proportional to 712,322.16, 983,004.84 and 390,052.68
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Solution
The fourth proportional to 712,322.16, 983,004.84 and 390,052.68 is: 538,272.84
Step by Step Solution
- Step 1: Write the proportion equation
712,322.16 : 983,004.84 = 390,052.68 : x - Step 2: Convert to fraction form
712,322.16/983,004.84 = 390,052.68/x - Step 3: Cross multiply
712,322.16x = 983,004.84 × 390,052.68 - Step 4: Simplify right side
712,322.16x = 383,423,672,294.97 - Step 5: Solve for x
x = 383,423,672,294.97/712,322.16 - Step 6: Final answer
x = 538,272.84
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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.