Finding the Fourth Proportional to 4,216,862.84, 6,325,294.12 and 1,021,989.02
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Solution
The fourth proportional to 4,216,862.84, 6,325,294.12 and 1,021,989.02 is: 1,532,983.49
Step by Step Solution
- Step 1: Write the proportion equation
4,216,862.84 : 6,325,294.12 = 1,021,989.02 : x - Step 2: Convert to fraction form
4,216,862.84/6,325,294.12 = 1,021,989.02/x - Step 3: Cross multiply
4,216,862.84x = 6,325,294.12 × 1,021,989.02 - Step 4: Simplify right side
4,216,862.84x = 6,464,381,104,729.12 - Step 5: Solve for x
x = 6,464,381,104,729.12/4,216,862.84 - Step 6: Final answer
x = 1,532,983.49
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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.