Finding the Fourth Proportional to 499,913.44, 689,894.10 and 306,317.80
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Solution
The fourth proportional to 499,913.44, 689,894.10 and 306,317.80 is: 422,726.87
Step by Step Solution
- Step 1: Write the proportion equation
499,913.44 : 689,894.10 = 306,317.80 : x - Step 2: Convert to fraction form
499,913.44/689,894.10 = 306,317.80/x - Step 3: Cross multiply
499,913.44x = 689,894.10 × 306,317.80 - Step 4: Simplify right side
499,913.44x = 211,326,842,944.98 - Step 5: Solve for x
x = 211,326,842,944.98/499,913.44 - Step 6: Final answer
x = 422,726.87
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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.