Finding the Fourth Proportional to 979,955.58, 1,352,405.55 and 544,423.98
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Solution
The fourth proportional to 979,955.58, 1,352,405.55 and 544,423.98 is: 751,342.23
Step by Step Solution
- Step 1: Write the proportion equation
979,955.58 : 1,352,405.55 = 544,423.98 : x - Step 2: Convert to fraction form
979,955.58/1,352,405.55 = 544,423.98/x - Step 3: Cross multiply
979,955.58x = 1,352,405.55 × 544,423.98 - Step 4: Simplify right side
979,955.58x = 736,282,012,105.09 - Step 5: Solve for x
x = 736,282,012,105.09/979,955.58 - Step 6: Final answer
x = 751,342.23
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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.