Finding the Fourth Proportional to 639,135.35, 958,701.87 and 372,709.02
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Solution
The fourth proportional to 639,135.35, 958,701.87 and 372,709.02 is: 559,062.86
Step by Step Solution
- Step 1: Write the proportion equation
639,135.35 : 958,701.87 = 372,709.02 : x - Step 2: Convert to fraction form
639,135.35/958,701.87 = 372,709.02/x - Step 3: Cross multiply
639,135.35x = 958,701.87 × 372,709.02 - Step 4: Simplify right side
639,135.35x = 357,316,834,439.87 - Step 5: Solve for x
x = 357,316,834,439.87/639,135.35 - Step 6: Final answer
x = 559,062.86
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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.