Finding the Fourth Proportional to 513,148.55, 708,143.23 and 286,794.05
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Solution
The fourth proportional to 513,148.55, 708,143.23 and 286,794.05 is: 395,774.80
Step by Step Solution
- Step 1: Write the proportion equation
513,148.55 : 708,143.23 = 286,794.05 : x - Step 2: Convert to fraction form
513,148.55/708,143.23 = 286,794.05/x - Step 3: Cross multiply
513,148.55x = 708,143.23 × 286,794.05 - Step 4: Simplify right side
513,148.55x = 203,091,264,099.65 - Step 5: Solve for x
x = 203,091,264,099.65/513,148.55 - Step 6: Final answer
x = 395,774.80
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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.