Finding the Fourth Proportional to 499,220.13, 688,924.14 and 272,865.63
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Solution
The fourth proportional to 499,220.13, 688,924.14 and 272,865.63 is: 376,554.77
Step by Step Solution
- Step 1: Write the proportion equation
499,220.13 : 688,924.14 = 272,865.63 : x - Step 2: Convert to fraction form
499,220.13/688,924.14 = 272,865.63/x - Step 3: Cross multiply
499,220.13x = 688,924.14 × 272,865.63 - Step 4: Simplify right side
499,220.13x = 187,983,719,483.31 - Step 5: Solve for x
x = 187,983,719,483.31/499,220.13 - Step 6: Final answer
x = 376,554.77
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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.