Finding the Fourth Proportional to 1,125,385.24, 1,553,117.88 and 641,961.04
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Solution
The fourth proportional to 1,125,385.24, 1,553,117.88 and 641,961.04 is: 885,955.43
Step by Step Solution
- Step 1: Write the proportion equation
1,125,385.24 : 1,553,117.88 = 641,961.04 : x - Step 2: Convert to fraction form
1,125,385.24/1,553,117.88 = 641,961.04/x - Step 3: Cross multiply
1,125,385.24x = 1,553,117.88 × 641,961.04 - Step 4: Simplify right side
1,125,385.24x = 997,041,169,487.40 - Step 5: Solve for x
x = 997,041,169,487.40/1,125,385.24 - Step 6: Final answer
x = 885,955.43
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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.