Finding the Fourth Proportional to 513,220.05, 708,215.00 and 283,764.06
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Solution
The fourth proportional to 513,220.05, 708,215.00 and 283,764.06 is: 391,578.55
Step by Step Solution
- Step 1: Write the proportion equation
513,220.05 : 708,215.00 = 283,764.06 : x - Step 2: Convert to fraction form
513,220.05/708,215.00 = 283,764.06/x - Step 3: Cross multiply
513,220.05x = 708,215.00 × 283,764.06 - Step 4: Simplify right side
513,220.05x = 200,965,962,334.08 - Step 5: Solve for x
x = 200,965,962,334.08/513,220.05 - Step 6: Final answer
x = 391,578.55
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1.5x scale
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.