Finding the Fourth Proportional to 766,403.64, 1,148,890.64 and 260,618.99
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Solution
The fourth proportional to 766,403.64, 1,148,890.64 and 260,618.99 is: 390,685.40
Step by Step Solution
- Step 1: Write the proportion equation
766,403.64 : 1,148,890.64 = 260,618.99 : x - Step 2: Convert to fraction form
766,403.64/1,148,890.64 = 260,618.99/x - Step 3: Cross multiply
766,403.64x = 1,148,890.64 × 260,618.99 - Step 4: Simplify right side
766,403.64x = 299,422,711,169.71 - Step 5: Solve for x
x = 299,422,711,169.71/766,403.64 - Step 6: Final answer
x = 390,685.40
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.