Finding the Fourth Proportional to 2,130,203.52, 2,939,665.91 and 1,163,334.06
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Solution
The fourth proportional to 2,130,203.52, 2,939,665.91 and 1,163,334.06 is: 1,605,392.84
Step by Step Solution
- Step 1: Write the proportion equation
2,130,203.52 : 2,939,665.91 = 1,163,334.06 : x - Step 2: Convert to fraction form
2,130,203.52/2,939,665.91 = 1,163,334.06/x - Step 3: Cross multiply
2,130,203.52x = 2,939,665.91 × 1,163,334.06 - Step 4: Simplify right side
2,130,203.52x = 3,419,813,472,307.22 - Step 5: Solve for x
x = 3,419,813,472,307.22/2,130,203.52 - Step 6: Final answer
x = 1,605,392.84
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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.