Finding the Fourth Proportional to 513,263.81, 708,304.07 and 286,909.31
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Solution
The fourth proportional to 513,263.81, 708,304.07 and 286,909.31 is: 395,934.86
Step by Step Solution
- Step 1: Write the proportion equation
513,263.81 : 708,304.07 = 286,909.31 : x - Step 2: Convert to fraction form
513,263.81/708,304.07 = 286,909.31/x - Step 3: Cross multiply
513,263.81x = 708,304.07 × 286,909.31 - Step 4: Simplify right side
513,263.81x = 203,219,034,481.93 - Step 5: Solve for x
x = 203,219,034,481.93/513,263.81 - Step 6: Final answer
x = 395,934.86
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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.