Finding the Fourth Proportional to 2,130,447.98, 2,939,972.64 and 1,163,582.04
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Solution
The fourth proportional to 2,130,447.98, 2,939,972.64 and 1,163,582.04 is: 1,605,718.33
Step by Step Solution
- Step 1: Write the proportion equation
2,130,447.98 : 2,939,972.64 = 1,163,582.04 : x - Step 2: Convert to fraction form
2,130,447.98/2,939,972.64 = 1,163,582.04/x - Step 3: Cross multiply
2,130,447.98x = 2,939,972.64 × 1,163,582.04 - Step 4: Simplify right side
2,130,447.98x = 3,420,899,361,995.39 - Step 5: Solve for x
x = 3,420,899,361,995.39/2,130,447.98 - Step 6: Final answer
x = 1,605,718.33
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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.