Finding the Fourth Proportional to 688,143.62, 949,983.35 and 430,164.07
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Solution
The fourth proportional to 688,143.62, 949,983.35 and 430,164.07 is: 593,842.18
Step by Step Solution
- Step 1: Write the proportion equation
688,143.62 : 949,983.35 = 430,164.07 : x - Step 2: Convert to fraction form
688,143.62/949,983.35 = 430,164.07/x - Step 3: Cross multiply
688,143.62x = 949,983.35 × 430,164.07 - Step 4: Simplify right side
688,143.62x = 408,648,704,268.24 - Step 5: Solve for x
x = 408,648,704,268.24/688,143.62 - Step 6: Final answer
x = 593,842.18
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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.