Finding the Fourth Proportional to 807,054.05, 1,113,698.65 and 462,643.06
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Solution
The fourth proportional to 807,054.05, 1,113,698.65 and 462,643.06 is: 638,426.82
Step by Step Solution
- Step 1: Write the proportion equation
807,054.05 : 1,113,698.65 = 462,643.06 : x - Step 2: Convert to fraction form
807,054.05/1,113,698.65 = 462,643.06/x - Step 3: Cross multiply
807,054.05x = 1,113,698.65 × 462,643.06 - Step 4: Simplify right side
807,054.05x = 515,244,949,147.93 - Step 5: Solve for x
x = 515,244,949,147.93/807,054.05 - Step 6: Final answer
x = 638,426.82
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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.