Finding the Fourth Proportional to 500,292.78, 689,937.58 and 463,138.08
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Solution
The fourth proportional to 500,292.78, 689,937.58 and 463,138.08 is: 638,698.74
Step by Step Solution
- Step 1: Write the proportion equation
500,292.78 : 689,937.58 = 463,138.08 : x - Step 2: Convert to fraction form
500,292.78/689,937.58 = 463,138.08/x - Step 3: Cross multiply
500,292.78x = 689,937.58 × 463,138.08 - Step 4: Simplify right side
500,292.78x = 319,536,366,121.05 - Step 5: Solve for x
x = 319,536,366,121.05/500,292.78 - Step 6: Final answer
x = 638,698.74
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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.