Finding the Fourth Proportional to 2,923,148.57, 4,031,943.44 and 1,905,931.13
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Solution
The fourth proportional to 2,923,148.57, 4,031,943.44 and 1,905,931.13 is: 2,628,879.89
Step by Step Solution
- Step 1: Write the proportion equation
2,923,148.57 : 4,031,943.44 = 1,905,931.13 : x - Step 2: Convert to fraction form
2,923,148.57/4,031,943.44 = 1,905,931.13/x - Step 3: Cross multiply
2,923,148.57x = 4,031,943.44 × 1,905,931.13 - Step 4: Simplify right side
2,923,148.57x = 7,684,606,487,005.91 - Step 5: Solve for x
x = 7,684,606,487,005.91/2,923,148.57 - Step 6: Final answer
x = 2,628,879.89
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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.