Finding the Fourth Proportional to 665,178.06, 917,946.56 and 378,698.14
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Solution
The fourth proportional to 665,178.06, 917,946.56 and 378,698.14 is: 522,603.91
Step by Step Solution
- Step 1: Write the proportion equation
665,178.06 : 917,946.56 = 378,698.14 : x - Step 2: Convert to fraction form
665,178.06/917,946.56 = 378,698.14/x - Step 3: Cross multiply
665,178.06x = 917,946.56 × 378,698.14 - Step 4: Simplify right side
665,178.06x = 347,624,652,997.91 - Step 5: Solve for x
x = 347,624,652,997.91/665,178.06 - Step 6: Final answer
x = 522,603.91
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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.