Finding the Fourth Proportional to 664,419.48, 916,579.99 and 434,875.71
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Solution
The fourth proportional to 664,419.48, 916,579.99 and 434,875.71 is: 599,919.76
Step by Step Solution
- Step 1: Write the proportion equation
664,419.48 : 916,579.99 = 434,875.71 : x - Step 2: Convert to fraction form
664,419.48/916,579.99 = 434,875.71/x - Step 3: Cross multiply
664,419.48x = 916,579.99 × 434,875.71 - Step 4: Simplify right side
664,419.48x = 398,598,373,923.04 - Step 5: Solve for x
x = 398,598,373,923.04/664,419.48 - Step 6: Final answer
x = 599,919.76
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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.