Finding the Fourth Proportional to 918,118.09, 1,267,033.73 and 510,237.12
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Solution
The fourth proportional to 918,118.09, 1,267,033.73 and 510,237.12 is: 704,144.32
Step by Step Solution
- Step 1: Write the proportion equation
918,118.09 : 1,267,033.73 = 510,237.12 : x - Step 2: Convert to fraction form
918,118.09/1,267,033.73 = 510,237.12/x - Step 3: Cross multiply
918,118.09x = 1,267,033.73 × 510,237.12 - Step 4: Simplify right side
918,118.09x = 646,487,641,338.06 - Step 5: Solve for x
x = 646,487,641,338.06/918,118.09 - Step 6: Final answer
x = 704,144.32
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1.5x scale
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.