Finding the Fourth Proportional to 513,501.68, 708,415.16 and 343,790.48
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Solution
The fourth proportional to 513,501.68, 708,415.16 and 343,790.48 is: 474,285.47
Step by Step Solution
- Step 1: Write the proportion equation
513,501.68 : 708,415.16 = 343,790.48 : x - Step 2: Convert to fraction form
513,501.68/708,415.16 = 343,790.48/x - Step 3: Cross multiply
513,501.68x = 708,415.16 × 343,790.48 - Step 4: Simplify right side
513,501.68x = 243,546,387,895.68 - Step 5: Solve for x
x = 243,546,387,895.68/513,501.68 - Step 6: Final answer
x = 474,285.47
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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.