Finding the Fourth Proportional to 557,547.36, 769,359.84 and 315,781.68
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Solution
The fourth proportional to 557,547.36, 769,359.84 and 315,781.68 is: 435,747.27
Step by Step Solution
- Step 1: Write the proportion equation
557,547.36 : 769,359.84 = 315,781.68 : x - Step 2: Convert to fraction form
557,547.36/769,359.84 = 315,781.68/x - Step 3: Cross multiply
557,547.36x = 769,359.84 × 315,781.68 - Step 4: Simplify right side
557,547.36x = 242,949,742,799.73 - Step 5: Solve for x
x = 242,949,742,799.73/557,547.36 - Step 6: Final answer
x = 435,747.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.