Finding the Fourth Proportional to 998,729.12, 1,378,246.08 and 546,020
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Solution
The fourth proportional to 998,729.12, 1,378,246.08 and 546,020 is: 753,507.54
Step by Step Solution
- Step 1: Write the proportion equation
998,729.12 : 1,378,246.08 = 546,020 : x - Step 2: Convert to fraction form
998,729.12/1,378,246.08 = 546,020/x - Step 3: Cross multiply
998,729.12x = 1,378,246.08 × 546,020 - Step 4: Simplify right side
998,729.12x = 752,549,924,601.60 - Step 5: Solve for x
x = 752,549,924,601.60/998,729.12 - Step 6: Final answer
x = 753,507.54
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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.