Finding the Fourth Proportional to 920,948.23, 1,270,910.55 and 533,838.31
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Solution
The fourth proportional to 920,948.23, 1,270,910.55 and 533,838.31 is: 736,698.02
Step by Step Solution
- Step 1: Write the proportion equation
920,948.23 : 1,270,910.55 = 533,838.31 : x - Step 2: Convert to fraction form
920,948.23/1,270,910.55 = 533,838.31/x - Step 3: Cross multiply
920,948.23x = 1,270,910.55 × 533,838.31 - Step 4: Simplify right side
920,948.23x = 678,460,740,173.17 - Step 5: Solve for x
x = 678,460,740,173.17/920,948.23 - Step 6: Final answer
x = 736,698.02
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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.