Finding the Fourth Proportional to 3,121,207.18, 4,681,810.80 and 877,345.18
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Solution
The fourth proportional to 3,121,207.18, 4,681,810.80 and 877,345.18 is: 1,316,017.78
Step by Step Solution
- Step 1: Write the proportion equation
3,121,207.18 : 4,681,810.80 = 877,345.18 : x - Step 2: Convert to fraction form
3,121,207.18/4,681,810.80 = 877,345.18/x - Step 3: Cross multiply
3,121,207.18x = 4,681,810.80 × 877,345.18 - Step 4: Simplify right side
3,121,207.18x = 4,107,564,139,051.94 - Step 5: Solve for x
x = 4,107,564,139,051.94/3,121,207.18 - Step 6: Final answer
x = 1,316,017.78
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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.