Finding the Fourth Proportional to 554,422.08, 765,098.76 and 312,706.65
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Solution
The fourth proportional to 554,422.08, 765,098.76 and 312,706.65 is: 431,533.08
Step by Step Solution
- Step 1: Write the proportion equation
554,422.08 : 765,098.76 = 312,706.65 : x - Step 2: Convert to fraction form
554,422.08/765,098.76 = 312,706.65/x - Step 3: Cross multiply
554,422.08x = 765,098.76 × 312,706.65 - Step 4: Simplify right side
554,422.08x = 239,251,470,158.75 - Step 5: Solve for x
x = 239,251,470,158.75/554,422.08 - Step 6: Final answer
x = 431,533.08
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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.