Finding the Fourth Proportional to 2,578,021.74, 3,557,275.08 and 1,490,083.74
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Solution
The fourth proportional to 2,578,021.74, 3,557,275.08 and 1,490,083.74 is: 2,056,087.30
Step by Step Solution
- Step 1: Write the proportion equation
2,578,021.74 : 3,557,275.08 = 1,490,083.74 : x - Step 2: Convert to fraction form
2,578,021.74/3,557,275.08 = 1,490,083.74/x - Step 3: Cross multiply
2,578,021.74x = 3,557,275.08 × 1,490,083.74 - Step 4: Simplify right side
2,578,021.74x = 5,300,637,755,415.20 - Step 5: Solve for x
x = 5,300,637,755,415.20/2,578,021.74 - Step 6: Final answer
x = 2,056,087.30
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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.