Finding the Fourth Proportional to 417,191.81, 575,430.93 and 403,303.44
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Solution
The fourth proportional to 417,191.81, 575,430.93 and 403,303.44 is: 556,274.77
Step by Step Solution
- Step 1: Write the proportion equation
417,191.81 : 575,430.93 = 403,303.44 : x - Step 2: Convert to fraction form
417,191.81/575,430.93 = 403,303.44/x - Step 3: Cross multiply
417,191.81x = 575,430.93 × 403,303.44 - Step 4: Simplify right side
417,191.81x = 232,073,273,551.40 - Step 5: Solve for x
x = 232,073,273,551.40/417,191.81 - Step 6: Final answer
x = 556,274.77
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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.