Finding the Fourth Proportional to 618,798.39, 853,995.15 and 346,918.75
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Solution
The fourth proportional to 618,798.39, 853,995.15 and 346,918.75 is: 478,777.79
Step by Step Solution
- Step 1: Write the proportion equation
618,798.39 : 853,995.15 = 346,918.75 : x - Step 2: Convert to fraction form
618,798.39/853,995.15 = 346,918.75/x - Step 3: Cross multiply
618,798.39x = 853,995.15 × 346,918.75 - Step 4: Simplify right side
618,798.39x = 296,266,927,809.08 - Step 5: Solve for x
x = 296,266,927,809.08/618,798.39 - Step 6: Final answer
x = 478,777.79
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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.