Finding the Fourth Proportional to 403,479.40, 605,219.10 and 384,125.80
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Solution
The fourth proportional to 403,479.40, 605,219.10 and 384,125.80 is: 576,188.70
Step by Step Solution
- Step 1: Write the proportion equation
403,479.40 : 605,219.10 = 384,125.80 : x - Step 2: Convert to fraction form
403,479.40/605,219.10 = 384,125.80/x - Step 3: Cross multiply
403,479.40x = 605,219.10 × 384,125.80 - Step 4: Simplify right side
403,479.40x = 232,480,270,962.78 - Step 5: Solve for x
x = 232,480,270,962.78/403,479.40 - Step 6: Final answer
x = 576,188.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.