Finding the Fourth Proportional to 905,339.08, 1,248,899.47 and 614,965.62
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Solution
The fourth proportional to 905,339.08, 1,248,899.47 and 614,965.62 is: 848,334.35
Step by Step Solution
- Step 1: Write the proportion equation
905,339.08 : 1,248,899.47 = 614,965.62 : x - Step 2: Convert to fraction form
905,339.08/1,248,899.47 = 614,965.62/x - Step 3: Cross multiply
905,339.08x = 1,248,899.47 × 614,965.62 - Step 4: Simplify right side
905,339.08x = 768,030,236,886.22 - Step 5: Solve for x
x = 768,030,236,886.22/905,339.08 - Step 6: Final answer
x = 848,334.35
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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.