Finding the Fourth Proportional to 403,506.80, 605,260.20 and 340,521.20
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Solution
The fourth proportional to 403,506.80, 605,260.20 and 340,521.20 is: 510,781.80
Step by Step Solution
- Step 1: Write the proportion equation
403,506.80 : 605,260.20 = 340,521.20 : x - Step 2: Convert to fraction form
403,506.80/605,260.20 = 340,521.20/x - Step 3: Cross multiply
403,506.80x = 605,260.20 × 340,521.20 - Step 4: Simplify right side
403,506.80x = 206,103,929,616.24 - Step 5: Solve for x
x = 206,103,929,616.24/403,506.80 - Step 6: Final answer
x = 510,781.80
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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.