Finding the Fourth Proportional to 442,901.70, 664,352.55 and 435,125.70
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Solution
The fourth proportional to 442,901.70, 664,352.55 and 435,125.70 is: 652,688.55
Step by Step Solution
- Step 1: Write the proportion equation
442,901.70 : 664,352.55 = 435,125.70 : x - Step 2: Convert to fraction form
442,901.70/664,352.55 = 435,125.70/x - Step 3: Cross multiply
442,901.70x = 664,352.55 × 435,125.70 - Step 4: Simplify right side
442,901.70x = 289,076,868,365.54 - Step 5: Solve for x
x = 289,076,868,365.54/442,901.70 - Step 6: Final answer
x = 652,688.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.