Finding the Fourth Proportional to 677,039.08, 934,279.24 and 390,542.08
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Solution
The fourth proportional to 677,039.08, 934,279.24 and 390,542.08 is: 538,928.06
Step by Step Solution
- Step 1: Write the proportion equation
677,039.08 : 934,279.24 = 390,542.08 : x - Step 2: Convert to fraction form
677,039.08/934,279.24 = 390,542.08/x - Step 3: Cross multiply
677,039.08x = 934,279.24 × 390,542.08 - Step 4: Simplify right side
677,039.08x = 364,875,357,690.42 - Step 5: Solve for x
x = 364,875,357,690.42/677,039.08 - Step 6: Final answer
x = 538,928.06
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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.