Finding the Fourth Proportional to 619,647.10, 855,197.99 and 347,731.06
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Solution
The fourth proportional to 619,647.10, 855,197.99 and 347,731.06 is: 479,916.57
Step by Step Solution
- Step 1: Write the proportion equation
619,647.10 : 855,197.99 = 347,731.06 : x - Step 2: Convert to fraction form
619,647.10/855,197.99 = 347,731.06/x - Step 3: Cross multiply
619,647.10x = 855,197.99 × 347,731.06 - Step 4: Simplify right side
619,647.10x = 297,378,905,722.28 - Step 5: Solve for x
x = 297,378,905,722.28/619,647.10 - Step 6: Final answer
x = 479,916.57
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.