Finding the Fourth Proportional to 510,958.05, 705,088.36 and 306,887.71
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Solution
The fourth proportional to 510,958.05, 705,088.36 and 306,887.71 is: 423,484.77
Step by Step Solution
- Step 1: Write the proportion equation
510,958.05 : 705,088.36 = 306,887.71 : x - Step 2: Convert to fraction form
510,958.05/705,088.36 = 306,887.71/x - Step 3: Cross multiply
510,958.05x = 705,088.36 × 306,887.71 - Step 4: Simplify right side
510,958.05x = 216,382,952,148.06 - Step 5: Solve for x
x = 216,382,952,148.06/510,958.05 - Step 6: Final answer
x = 423,484.77
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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.