Finding the Fourth Proportional to 513,479.93, 708,547.77 and 284,000.75
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Solution
The fourth proportional to 513,479.93, 708,547.77 and 284,000.75 is: 391,890.87
Step by Step Solution
- Step 1: Write the proportion equation
513,479.93 : 708,547.77 = 284,000.75 : x - Step 2: Convert to fraction form
513,479.93/708,547.77 = 284,000.75/x - Step 3: Cross multiply
513,479.93x = 708,547.77 × 284,000.75 - Step 4: Simplify right side
513,479.93x = 201,228,094,548.09 - Step 5: Solve for x
x = 201,228,094,548.09/513,479.93 - Step 6: Final answer
x = 391,890.87
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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.