Finding the Fourth Proportional to 640,605.36, 884,000.70 and 354,106.98
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Solution
The fourth proportional to 640,605.36, 884,000.70 and 354,106.98 is: 488,648.45
Step by Step Solution
- Step 1: Write the proportion equation
640,605.36 : 884,000.70 = 354,106.98 : x - Step 2: Convert to fraction form
640,605.36/884,000.70 = 354,106.98/x - Step 3: Cross multiply
640,605.36x = 884,000.70 × 354,106.98 - Step 4: Simplify right side
640,605.36x = 313,030,818,194.89 - Step 5: Solve for x
x = 313,030,818,194.89/640,605.36 - Step 6: Final answer
x = 488,648.45
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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.