Finding the Fourth Proportional to 456,407.36, 684,518.88 and 317,430.08
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Solution
The fourth proportional to 456,407.36, 684,518.88 and 317,430.08 is: 476,081.02
Step by Step Solution
- Step 1: Write the proportion equation
456,407.36 : 684,518.88 = 317,430.08 : x - Step 2: Convert to fraction form
456,407.36/684,518.88 = 317,430.08/x - Step 3: Cross multiply
456,407.36x = 684,518.88 × 317,430.08 - Step 4: Simplify right side
456,407.36x = 217,286,882,839.91 - Step 5: Solve for x
x = 217,286,882,839.91/456,407.36 - Step 6: Final answer
x = 476,081.02
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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.