Finding the Fourth Proportional to 3,423,698.78, 4,724,670.42 and 1,853,823.08
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Solution
The fourth proportional to 3,423,698.78, 4,724,670.42 and 1,853,823.08 is: 2,558,257.50
Step by Step Solution
- Step 1: Write the proportion equation
3,423,698.78 : 4,724,670.42 = 1,853,823.08 : x - Step 2: Convert to fraction form
3,423,698.78/4,724,670.42 = 1,853,823.08/x - Step 3: Cross multiply
3,423,698.78x = 4,724,670.42 × 1,853,823.08 - Step 4: Simplify right side
3,423,698.78x = 8,758,703,069,989.29 - Step 5: Solve for x
x = 8,758,703,069,989.29/3,423,698.78 - Step 6: Final answer
x = 2,558,257.50
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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.