Finding the Third Proportional to 432,312.19 and 690,628.78
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Solution
The third proportional to 432,312.19 and 690,628.78 is: 1,103,295.55
Step by Step Solution
- Step 1: Write the proportion equation
432,312.19 : 690,628.78 = 690,628.78 : x - Step 2: Convert to fraction form
432,312.19/690,628.78 = 690,628.78/x - Step 3: Cross multiply
432,312.19x = 690,628.78 × 690,628.78 - Step 4: Simplify right side
432,312.19x = 476,968,113,490.86 - Step 5: Solve for x
x = 476,968,113,490.86/432,312.19 - Step 6: Final answer
x = 1,103,295.55
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These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.