Finding the Fourth Proportional to 677,038.08, 934,277.84 and 390,541.08
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Solution
The fourth proportional to 677,038.08, 934,277.84 and 390,541.08 is: 538,926.67
Step by Step Solution
- Step 1: Write the proportion equation
677,038.08 : 934,277.84 = 390,541.08 : x - Step 2: Convert to fraction form
677,038.08/934,277.84 = 390,541.08/x - Step 3: Cross multiply
677,038.08x = 934,277.84 × 390,541.08 - Step 4: Simplify right side
677,038.08x = 364,873,876,653.67 - Step 5: Solve for x
x = 364,873,876,653.67/677,038.08 - Step 6: Final answer
x = 538,926.67
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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.