Finding the Fourth Proportional to 572,718.12, 790,619.64 and 330,953.47
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Solution
The fourth proportional to 572,718.12, 790,619.64 and 330,953.47 is: 456,871.02
Step by Step Solution
- Step 1: Write the proportion equation
572,718.12 : 790,619.64 = 330,953.47 : x - Step 2: Convert to fraction form
572,718.12/790,619.64 = 330,953.47/x - Step 3: Cross multiply
572,718.12x = 790,619.64 × 330,953.47 - Step 4: Simplify right side
572,718.12x = 261,658,312,314.14 - Step 5: Solve for x
x = 261,658,312,314.14/572,718.12 - Step 6: Final answer
x = 456,871.02
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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.