Finding the Fourth Proportional to 2,117,934.42, 2,923,174.62 and 1,258,329.21
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Solution
The fourth proportional to 2,117,934.42, 2,923,174.62 and 1,258,329.21 is: 1,736,746.89
Step by Step Solution
- Step 1: Write the proportion equation
2,117,934.42 : 2,923,174.62 = 1,258,329.21 : x - Step 2: Convert to fraction form
2,117,934.42/2,923,174.62 = 1,258,329.21/x - Step 3: Cross multiply
2,117,934.42x = 2,923,174.62 × 1,258,329.21 - Step 4: Simplify right side
2,117,934.42x = 3,678,316,010,276.65 - Step 5: Solve for x
x = 3,678,316,010,276.65/2,117,934.42 - Step 6: Final answer
x = 1,736,746.89
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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.