Finding the Fourth Proportional to 644,708.46, 889,701.93 and 403,132.44
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Solution
The fourth proportional to 644,708.46, 889,701.93 and 403,132.44 is: 556,325.43
Step by Step Solution
- Step 1: Write the proportion equation
644,708.46 : 889,701.93 = 403,132.44 : x - Step 2: Convert to fraction form
644,708.46/889,701.93 = 403,132.44/x - Step 3: Cross multiply
644,708.46x = 889,701.93 × 403,132.44 - Step 4: Simplify right side
644,708.46x = 358,667,705,465.10 - Step 5: Solve for x
x = 358,667,705,465.10/644,708.46 - Step 6: Final answer
x = 556,325.43
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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.