Finding the Fourth Proportional to 712,921.24, 1,069,516.73 and 286,490.26
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Solution
The fourth proportional to 712,921.24, 1,069,516.73 and 286,490.26 is: 429,789.59
Step by Step Solution
- Step 1: Write the proportion equation
712,921.24 : 1,069,516.73 = 286,490.26 : x - Step 2: Convert to fraction form
712,921.24/1,069,516.73 = 286,490.26/x - Step 3: Cross multiply
712,921.24x = 1,069,516.73 × 286,490.26 - Step 4: Simplify right side
712,921.24x = 306,406,126,052.05 - Step 5: Solve for x
x = 306,406,126,052.05/712,921.24 - Step 6: Final answer
x = 429,789.59
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1.5x scale
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.