Finding the Fourth Proportional to 901,603.80, 1,352,405.70 and 429,211.80
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Solution
The fourth proportional to 901,603.80, 1,352,405.70 and 429,211.80 is: 643,817.70
Step by Step Solution
- Step 1: Write the proportion equation
901,603.80 : 1,352,405.70 = 429,211.80 : x - Step 2: Convert to fraction form
901,603.80/1,352,405.70 = 429,211.80/x - Step 3: Cross multiply
901,603.80x = 1,352,405.70 × 429,211.80 - Step 4: Simplify right side
901,603.80x = 580,468,484,827.26 - Step 5: Solve for x
x = 580,468,484,827.26/901,603.80 - Step 6: Final answer
x = 643,817.70
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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.