Finding the Fourth Proportional to 713,138.70, 1,069,448.85 and 358,034.70
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Solution
The fourth proportional to 713,138.70, 1,069,448.85 and 358,034.70 is: 536,921.92
Step by Step Solution
- Step 1: Write the proportion equation
713,138.70 : 1,069,448.85 = 358,034.70 : x - Step 2: Convert to fraction form
713,138.70/1,069,448.85 = 358,034.70/x - Step 3: Cross multiply
713,138.70x = 1,069,448.85 × 358,034.70 - Step 4: Simplify right side
713,138.70x = 382,899,798,175.10 - Step 5: Solve for x
x = 382,899,798,175.10/713,138.70 - Step 6: Final answer
x = 536,921.92
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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.