Finding the Fourth Proportional to 665,175.85, 917,943.55 and 378,695.93
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Solution
The fourth proportional to 665,175.85, 917,943.55 and 378,695.93 is: 522,600.88
Step by Step Solution
- Step 1: Write the proportion equation
665,175.85 : 917,943.55 = 378,695.93 : x - Step 2: Convert to fraction form
665,175.85/917,943.55 = 378,695.93/x - Step 3: Cross multiply
665,175.85x = 917,943.55 × 378,695.93 - Step 4: Simplify right side
665,175.85x = 347,621,480,818.29 - Step 5: Solve for x
x = 347,621,480,818.29/665,175.85 - Step 6: Final answer
x = 522,600.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.