Finding the Fourth Proportional to 2,528,983.84, 3,489,990.18 and 1,367,421.85
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Solution
The fourth proportional to 2,528,983.84, 3,489,990.18 and 1,367,421.85 is: 1,887,038.09
Step by Step Solution
- Step 1: Write the proportion equation
2,528,983.84 : 3,489,990.18 = 1,367,421.85 : x - Step 2: Convert to fraction form
2,528,983.84/3,489,990.18 = 1,367,421.85/x - Step 3: Cross multiply
2,528,983.84x = 3,489,990.18 × 1,367,421.85 - Step 4: Simplify right side
2,528,983.84x = 4,772,288,828,417.43 - Step 5: Solve for x
x = 4,772,288,828,417.43/2,528,983.84 - Step 6: Final answer
x = 1,887,038.09
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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.