Finding the Fourth Proportional to 465,881.99, 698,838.51 and 128,894.40
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Solution
The fourth proportional to 465,881.99, 698,838.51 and 128,894.40 is: 193,345.90
Step by Step Solution
- Step 1: Write the proportion equation
465,881.99 : 698,838.51 = 128,894.40 : x - Step 2: Convert to fraction form
465,881.99/698,838.51 = 128,894.40/x - Step 3: Cross multiply
465,881.99x = 698,838.51 × 128,894.40 - Step 4: Simplify right side
465,881.99x = 90,076,370,443.34 - Step 5: Solve for x
x = 90,076,370,443.34/465,881.99 - Step 6: Final answer
x = 193,345.90
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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.