Finding the Fourth Proportional to 761,612.40, 1,050,982.37 and 417,382.70
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Solution
The fourth proportional to 761,612.40, 1,050,982.37 and 417,382.70 is: 575,964.70
Step by Step Solution
- Step 1: Write the proportion equation
761,612.40 : 1,050,982.37 = 417,382.70 : x - Step 2: Convert to fraction form
761,612.40/1,050,982.37 = 417,382.70/x - Step 3: Cross multiply
761,612.40x = 1,050,982.37 × 417,382.70 - Step 4: Simplify right side
761,612.40x = 438,661,855,248.36 - Step 5: Solve for x
x = 438,661,855,248.36/761,612.40 - Step 6: Final answer
x = 575,964.70
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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.