Finding the Third Proportional to 491,228.30 and 781,129.83
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Solution
The third proportional to 491,228.30 and 781,129.83 is: 1,242,118.61
Step by Step Solution
- Step 1: Write the proportion equation
491,228.30 : 781,129.83 = 781,129.83 : x - Step 2: Convert to fraction form
491,228.30/781,129.83 = 781,129.83/x - Step 3: Cross multiply
491,228.30x = 781,129.83 × 781,129.83 - Step 4: Simplify right side
491,228.30x = 610,163,808,386.59 - Step 5: Solve for x
x = 610,163,808,386.59/491,228.30 - Step 6: Final answer
x = 1,242,118.61
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Why These Related Problems?
These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.