Finding the Fourth Proportional to 4,979,373.79, 6,871,468.25 and 2,803,943.02
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Solution
The fourth proportional to 4,979,373.79, 6,871,468.25 and 2,803,943.02 is: 3,869,403.31
Step by Step Solution
- Step 1: Write the proportion equation
4,979,373.79 : 6,871,468.25 = 2,803,943.02 : x - Step 2: Convert to fraction form
4,979,373.79/6,871,468.25 = 2,803,943.02/x - Step 3: Cross multiply
4,979,373.79x = 6,871,468.25 × 2,803,943.02 - Step 4: Simplify right side
4,979,373.79x = 19,267,205,388,362.06 - Step 5: Solve for x
x = 19,267,205,388,362.06/4,979,373.79 - Step 6: Final answer
x = 3,869,403.31
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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.