Finding the Fourth Proportional to 518,272.08, 715,223.44 and 288,823.12
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Solution
The fourth proportional to 518,272.08, 715,223.44 and 288,823.12 is: 398,580.35
Step by Step Solution
- Step 1: Write the proportion equation
518,272.08 : 715,223.44 = 288,823.12 : x - Step 2: Convert to fraction form
518,272.08/715,223.44 = 288,823.12/x - Step 3: Cross multiply
518,272.08x = 715,223.44 × 288,823.12 - Step 4: Simplify right side
518,272.08x = 206,573,065,437.93 - Step 5: Solve for x
x = 206,573,065,437.93/518,272.08 - Step 6: Final answer
x = 398,580.35
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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.