Finding the Fourth Proportional to 507,139.19, 699,873.96 and 280,784.69
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Solution
The fourth proportional to 507,139.19, 699,873.96 and 280,784.69 is: 387,494.99
Step by Step Solution
- Step 1: Write the proportion equation
507,139.19 : 699,873.96 = 280,784.69 : x - Step 2: Convert to fraction form
507,139.19/699,873.96 = 280,784.69/x - Step 3: Cross multiply
507,139.19x = 699,873.96 × 280,784.69 - Step 4: Simplify right side
507,139.19x = 196,513,892,897.67 - Step 5: Solve for x
x = 196,513,892,897.67/507,139.19 - Step 6: Final answer
x = 387,494.99
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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.