Finding the Fourth Proportional to 709,533.68, 979,971.01 and 516,800.05
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Solution
The fourth proportional to 709,533.68, 979,971.01 and 516,800.05 is: 713,777.35
Step by Step Solution
- Step 1: Write the proportion equation
709,533.68 : 979,971.01 = 516,800.05 : x - Step 2: Convert to fraction form
709,533.68/979,971.01 = 516,800.05/x - Step 3: Cross multiply
709,533.68x = 979,971.01 × 516,800.05 - Step 4: Simplify right side
709,533.68x = 506,449,063,224.62 - Step 5: Solve for x
x = 506,449,063,224.62/709,533.68 - Step 6: Final answer
x = 713,777.35
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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.