Finding the Fourth Proportional to 702,987.60, 970,110.84 and 380,695.08
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Solution
The fourth proportional to 702,987.60, 970,110.84 and 380,695.08 is: 525,352.69
Step by Step Solution
- Step 1: Write the proportion equation
702,987.60 : 970,110.84 = 380,695.08 : x - Step 2: Convert to fraction form
702,987.60/970,110.84 = 380,695.08/x - Step 3: Cross multiply
702,987.60x = 970,110.84 × 380,695.08 - Step 4: Simplify right side
702,987.60x = 369,316,423,842.67 - Step 5: Solve for x
x = 369,316,423,842.67/702,987.60 - Step 6: Final answer
x = 525,352.69
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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.