Finding the Fourth Proportional to 858,615.99, 1,184,830.70 and 476,612.70
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Solution
The fourth proportional to 858,615.99, 1,184,830.70 and 476,612.70 is: 657,692.57
Step by Step Solution
- Step 1: Write the proportion equation
858,615.99 : 1,184,830.70 = 476,612.70 : x - Step 2: Convert to fraction form
858,615.99/1,184,830.70 = 476,612.70/x - Step 3: Cross multiply
858,615.99x = 1,184,830.70 × 476,612.70 - Step 4: Simplify right side
858,615.99x = 564,705,358,969.89 - Step 5: Solve for x
x = 564,705,358,969.89/858,615.99 - Step 6: Final answer
x = 657,692.57
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1.5x scale
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.