Finding the Fourth Proportional to 810,998, 1,119,132.07 and 448,400.08
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Solution
The fourth proportional to 810,998, 1,119,132.07 and 448,400.08 is: 618,767.14
Step by Step Solution
- Step 1: Write the proportion equation
810,998 : 1,119,132.07 = 448,400.08 : x - Step 2: Convert to fraction form
810,998/1,119,132.07 = 448,400.08/x - Step 3: Cross multiply
810,998x = 1,119,132.07 × 448,400.08 - Step 4: Simplify right side
810,998x = 501,818,909,718.57 - Step 5: Solve for x
x = 501,818,909,718.57/810,998 - Step 6: Final answer
x = 618,767.14
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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.