Finding the Fourth Proportional to 955,959.50, 1,319,237.69 and 520,390.19
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Solution
The fourth proportional to 955,959.50, 1,319,237.69 and 520,390.19 is: 718,145.85
Step by Step Solution
- Step 1: Write the proportion equation
955,959.50 : 1,319,237.69 = 520,390.19 : x - Step 2: Convert to fraction form
955,959.50/1,319,237.69 = 520,390.19/x - Step 3: Cross multiply
955,959.50x = 1,319,237.69 × 520,390.19 - Step 4: Simplify right side
955,959.50x = 686,518,342,956.12 - Step 5: Solve for x
x = 686,518,342,956.12/955,959.50 - Step 6: Final answer
x = 718,145.85
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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.