Finding the Fourth Proportional to 767,693.12, 1,059,416.28 and 428,154.08
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Solution
The fourth proportional to 767,693.12, 1,059,416.28 and 428,154.08 is: 590,852.50
Step by Step Solution
- Step 1: Write the proportion equation
767,693.12 : 1,059,416.28 = 428,154.08 : x - Step 2: Convert to fraction form
767,693.12/1,059,416.28 = 428,154.08/x - Step 3: Cross multiply
767,693.12x = 1,059,416.28 × 428,154.08 - Step 4: Simplify right side
767,693.12x = 453,593,402,700.42 - Step 5: Solve for x
x = 453,593,402,700.42/767,693.12 - Step 6: Final answer
x = 590,852.50
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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.