Finding the Fourth Proportional to 552,318.19, 762,203.67 and 310,598.65
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Solution
The fourth proportional to 552,318.19, 762,203.67 and 310,598.65 is: 428,628.71
Step by Step Solution
- Step 1: Write the proportion equation
552,318.19 : 762,203.67 = 310,598.65 : x - Step 2: Convert to fraction form
552,318.19/762,203.67 = 310,598.65/x - Step 3: Cross multiply
552,318.19x = 762,203.67 × 310,598.65 - Step 4: Simplify right side
552,318.19x = 236,739,432,462.17 - Step 5: Solve for x
x = 236,739,432,462.17/552,318.19 - Step 6: Final answer
x = 428,628.71
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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.