Finding the Fourth Proportional to 799,579.40, 1,103,417.71 and 455,415.26
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Solution
The fourth proportional to 799,579.40, 1,103,417.71 and 455,415.26 is: 628,471.99
Step by Step Solution
- Step 1: Write the proportion equation
799,579.40 : 1,103,417.71 = 455,415.26 : x - Step 2: Convert to fraction form
799,579.40/1,103,417.71 = 455,415.26/x - Step 3: Cross multiply
799,579.40x = 1,103,417.71 × 455,415.26 - Step 4: Simplify right side
799,579.40x = 502,513,256,632.63 - Step 5: Solve for x
x = 502,513,256,632.63/799,579.40 - Step 6: Final answer
x = 628,471.99
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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.