Finding the Fourth Proportional to 584,658.75, 806,829.08 and 316,386.75
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Solution
The fourth proportional to 584,658.75, 806,829.08 and 316,386.75 is: 436,613.72
Step by Step Solution
- Step 1: Write the proportion equation
584,658.75 : 806,829.08 = 316,386.75 : x - Step 2: Convert to fraction form
584,658.75/806,829.08 = 316,386.75/x - Step 3: Cross multiply
584,658.75x = 806,829.08 × 316,386.75 - Step 4: Simplify right side
584,658.75x = 255,270,028,844.76 - Step 5: Solve for x
x = 255,270,028,844.76/584,658.75 - Step 6: Final answer
x = 436,613.72
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1.5x scale
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.