Finding the Fourth Proportional to 527,123.16, 727,482.06 and 300,802.68
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Solution
The fourth proportional to 527,123.16, 727,482.06 and 300,802.68 is: 415,137.43
Step by Step Solution
- Step 1: Write the proportion equation
527,123.16 : 727,482.06 = 300,802.68 : x - Step 2: Convert to fraction form
527,123.16/727,482.06 = 300,802.68/x - Step 3: Cross multiply
527,123.16x = 727,482.06 × 300,802.68 - Step 4: Simplify right side
527,123.16x = 218,828,553,299.92 - Step 5: Solve for x
x = 218,828,553,299.92/527,123.16 - Step 6: Final answer
x = 415,137.43
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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.