Finding the Fourth Proportional to 840,590.24, 1,260,175.68 and 391,079.04
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Solution
The fourth proportional to 840,590.24, 1,260,175.68 and 391,079.04 is: 586,288.39
Step by Step Solution
- Step 1: Write the proportion equation
840,590.24 : 1,260,175.68 = 391,079.04 : x - Step 2: Convert to fraction form
840,590.24/1,260,175.68 = 391,079.04/x - Step 3: Cross multiply
840,590.24x = 1,260,175.68 × 391,079.04 - Step 4: Simplify right side
840,590.24x = 492,828,295,165.75 - Step 5: Solve for x
x = 492,828,295,165.75/840,590.24 - Step 6: Final answer
x = 586,288.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.