Finding the Fourth Proportional to 513,070.44, 708,038.12 and 286,715.92
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Solution
The fourth proportional to 513,070.44, 708,038.12 and 286,715.92 is: 395,668.48
Step by Step Solution
- Step 1: Write the proportion equation
513,070.44 : 708,038.12 = 286,715.92 : x - Step 2: Convert to fraction form
513,070.44/708,038.12 = 286,715.92/x - Step 3: Cross multiply
513,070.44x = 708,038.12 × 286,715.92 - Step 4: Simplify right side
513,070.44x = 203,005,800,970.87 - Step 5: Solve for x
x = 203,005,800,970.87/513,070.44 - Step 6: Final answer
x = 395,668.48
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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.