Finding the Fourth Proportional to 513,205.31, 708,210.77 and 283,756.55
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Solution
The fourth proportional to 513,205.31, 708,210.77 and 283,756.55 is: 391,577.09
Step by Step Solution
- Step 1: Write the proportion equation
513,205.31 : 708,210.77 = 283,756.55 : x - Step 2: Convert to fraction form
513,205.31/708,210.77 = 283,756.55/x - Step 3: Cross multiply
513,205.31x = 708,210.77 × 283,756.55 - Step 4: Simplify right side
513,205.31x = 200,959,439,808.21 - Step 5: Solve for x
x = 200,959,439,808.21/513,205.31 - Step 6: Final answer
x = 391,577.09
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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.