Finding the Fourth Proportional to 439,296.12, 606,064.14 and 258,013.80
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Solution
The fourth proportional to 439,296.12, 606,064.14 and 258,013.80 is: 355,962.42
Step by Step Solution
- Step 1: Write the proportion equation
439,296.12 : 606,064.14 = 258,013.80 : x - Step 2: Convert to fraction form
439,296.12/606,064.14 = 258,013.80/x - Step 3: Cross multiply
439,296.12x = 606,064.14 × 258,013.80 - Step 4: Simplify right side
439,296.12x = 156,372,911,805.13 - Step 5: Solve for x
x = 156,372,911,805.13/439,296.12 - Step 6: Final answer
x = 355,962.42
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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.