Finding the Fourth Proportional to 876,073.42, 1,209,239.88 and 513,575.74
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Solution
The fourth proportional to 876,073.42, 1,209,239.88 and 513,575.74 is: 708,886.09
Step by Step Solution
- Step 1: Write the proportion equation
876,073.42 : 1,209,239.88 = 513,575.74 : x - Step 2: Convert to fraction form
876,073.42/1,209,239.88 = 513,575.74/x - Step 3: Cross multiply
876,073.42x = 1,209,239.88 × 513,575.74 - Step 4: Simplify right side
876,073.42x = 621,036,257,594.43 - Step 5: Solve for x
x = 621,036,257,594.43/876,073.42 - Step 6: Final answer
x = 708,886.09
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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.