Finding the Fourth Proportional to 2,553,357.38, 3,523,612.08 and 1,391,782.53
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Solution
The fourth proportional to 2,553,357.38, 3,523,612.08 and 1,391,782.53 is: 1,920,648.38
Step by Step Solution
- Step 1: Write the proportion equation
2,553,357.38 : 3,523,612.08 = 1,391,782.53 : x - Step 2: Convert to fraction form
2,553,357.38/3,523,612.08 = 1,391,782.53/x - Step 3: Cross multiply
2,553,357.38x = 3,523,612.08 × 1,391,782.53 - Step 4: Simplify right side
2,553,357.38x = 4,904,101,724,143.22 - Step 5: Solve for x
x = 4,904,101,724,143.22/2,553,357.38 - Step 6: Final answer
x = 1,920,648.38
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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.