Finding the Fourth Proportional to 778,276.82, 1,167,352.90 and 346,128.08
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Solution
The fourth proportional to 778,276.82, 1,167,352.90 and 346,128.08 is: 519,164.40
Step by Step Solution
- Step 1: Write the proportion equation
778,276.82 : 1,167,352.90 = 346,128.08 : x - Step 2: Convert to fraction form
778,276.82/1,167,352.90 = 346,128.08/x - Step 3: Cross multiply
778,276.82x = 1,167,352.90 × 346,128.08 - Step 4: Simplify right side
778,276.82x = 404,053,617,959.43 - Step 5: Solve for x
x = 404,053,617,959.43/778,276.82 - Step 6: Final answer
x = 519,164.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.