Finding the Fourth Proportional to 646,966.20, 970,117.92 and 347,698.74
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Solution
The fourth proportional to 646,966.20, 970,117.92 and 347,698.74 is: 521,370.02
Step by Step Solution
- Step 1: Write the proportion equation
646,966.20 : 970,117.92 = 347,698.74 : x - Step 2: Convert to fraction form
646,966.20/970,117.92 = 347,698.74/x - Step 3: Cross multiply
646,966.20x = 970,117.92 × 347,698.74 - Step 4: Simplify right side
646,966.20x = 337,308,778,435.42 - Step 5: Solve for x
x = 337,308,778,435.42/646,966.20 - Step 6: Final answer
x = 521,370.02
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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.