Finding the Fourth Proportional to 661,908.84, 913,751.46 and 407,478.12
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Solution
The fourth proportional to 661,908.84, 913,751.46 and 407,478.12 is: 562,515.11
Step by Step Solution
- Step 1: Write the proportion equation
661,908.84 : 913,751.46 = 407,478.12 : x - Step 2: Convert to fraction form
661,908.84/913,751.46 = 407,478.12/x - Step 3: Cross multiply
661,908.84x = 913,751.46 × 407,478.12 - Step 4: Simplify right side
661,908.84x = 372,333,727,068.06 - Step 5: Solve for x
x = 372,333,727,068.06/661,908.84 - Step 6: Final answer
x = 562,515.11
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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.