Finding the Fourth Proportional to 734,719.80, 1,102,079.70 and 616,621.80
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Solution
The fourth proportional to 734,719.80, 1,102,079.70 and 616,621.80 is: 924,932.70
Step by Step Solution
- Step 1: Write the proportion equation
734,719.80 : 1,102,079.70 = 616,621.80 : x - Step 2: Convert to fraction form
734,719.80/1,102,079.70 = 616,621.80/x - Step 3: Cross multiply
734,719.80x = 1,102,079.70 × 616,621.80 - Step 4: Simplify right side
734,719.80x = 679,566,368,357.46 - Step 5: Solve for x
x = 679,566,368,357.46/734,719.80 - Step 6: Final answer
x = 924,932.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.