Finding the Fourth Proportional to 839,248.80, 1,158,163.52 and 457,275.58
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Solution
The fourth proportional to 839,248.80, 1,158,163.52 and 457,275.58 is: 631,040.39
Step by Step Solution
- Step 1: Write the proportion equation
839,248.80 : 1,158,163.52 = 457,275.58 : x - Step 2: Convert to fraction form
839,248.80/1,158,163.52 = 457,275.58/x - Step 3: Cross multiply
839,248.80x = 1,158,163.52 × 457,275.58 - Step 4: Simplify right side
839,248.80x = 529,599,890,161.06 - Step 5: Solve for x
x = 529,599,890,161.06/839,248.80 - Step 6: Final answer
x = 631,040.39
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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.