Finding the Fourth Proportional to 513,204.81, 708,210.07 and 283,756.05
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Solution
The fourth proportional to 513,204.81, 708,210.07 and 283,756.05 is: 391,576.40
Step by Step Solution
- Step 1: Write the proportion equation
513,204.81 : 708,210.07 = 283,756.05 : x - Step 2: Convert to fraction form
513,204.81/708,210.07 = 283,756.05/x - Step 3: Cross multiply
513,204.81x = 708,210.07 × 283,756.05 - Step 4: Simplify right side
513,204.81x = 200,958,892,033.42 - Step 5: Solve for x
x = 200,958,892,033.42/513,204.81 - Step 6: Final answer
x = 391,576.40
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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.