Finding the Fourth Proportional to 507,036.18, 699,710.08 and 280,681.68
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Solution
The fourth proportional to 507,036.18, 699,710.08 and 280,681.68 is: 387,340.80
Step by Step Solution
- Step 1: Write the proportion equation
507,036.18 : 699,710.08 = 280,681.68 : x - Step 2: Convert to fraction form
507,036.18/699,710.08 = 280,681.68/x - Step 3: Cross multiply
507,036.18x = 699,710.08 × 280,681.68 - Step 4: Simplify right side
507,036.18x = 196,395,800,767.33 - Step 5: Solve for x
x = 196,395,800,767.33/507,036.18 - Step 6: Final answer
x = 387,340.80
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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.