Finding the Fourth Proportional to 2,101,888.47, 2,900,614.95 and 1,184,128.62
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Solution
The fourth proportional to 2,101,888.47, 2,900,614.95 and 1,184,128.62 is: 1,634,102.48
Step by Step Solution
- Step 1: Write the proportion equation
2,101,888.47 : 2,900,614.95 = 1,184,128.62 : x - Step 2: Convert to fraction form
2,101,888.47/2,900,614.95 = 1,184,128.62/x - Step 3: Cross multiply
2,101,888.47x = 2,900,614.95 × 1,184,128.62 - Step 4: Simplify right side
2,101,888.47x = 3,434,701,171,974.23 - Step 5: Solve for x
x = 3,434,701,171,974.23/2,101,888.47 - Step 6: Final answer
x = 1,634,102.48
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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.