Finding the Fourth Proportional to 999,038.20, 1,378,798.98 and 655,163.50
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Solution
The fourth proportional to 999,038.20, 1,378,798.98 and 655,163.50 is: 904,208.43
Step by Step Solution
- Step 1: Write the proportion equation
999,038.20 : 1,378,798.98 = 655,163.50 : x - Step 2: Convert to fraction form
999,038.20/1,378,798.98 = 655,163.50/x - Step 3: Cross multiply
999,038.20x = 1,378,798.98 × 655,163.50 - Step 4: Simplify right side
999,038.20x = 903,338,765,533.23 - Step 5: Solve for x
x = 903,338,765,533.23/999,038.20 - Step 6: Final answer
x = 904,208.43
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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.