Finding the Fourth Proportional to 674,254.16, 930,497.64 and 387,774.08
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Solution
The fourth proportional to 674,254.16, 930,497.64 and 387,774.08 is: 535,143.70
Step by Step Solution
- Step 1: Write the proportion equation
674,254.16 : 930,497.64 = 387,774.08 : x - Step 2: Convert to fraction form
674,254.16/930,497.64 = 387,774.08/x - Step 3: Cross multiply
674,254.16x = 930,497.64 × 387,774.08 - Step 4: Simplify right side
674,254.16x = 360,822,866,293.17 - Step 5: Solve for x
x = 360,822,866,293.17/674,254.16 - Step 6: Final answer
x = 535,143.70
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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.