Finding the Fourth Proportional to 879,497.60, 1,319,246.40 and 547,721.60
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Solution
The fourth proportional to 879,497.60, 1,319,246.40 and 547,721.60 is: 821,582.40
Step by Step Solution
- Step 1: Write the proportion equation
879,497.60 : 1,319,246.40 = 547,721.60 : x - Step 2: Convert to fraction form
879,497.60/1,319,246.40 = 547,721.60/x - Step 3: Cross multiply
879,497.60x = 1,319,246.40 × 547,721.60 - Step 4: Simplify right side
879,497.60x = 722,579,749,002.24 - Step 5: Solve for x
x = 722,579,749,002.24/879,497.60 - Step 6: Final answer
x = 821,582.40
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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.