Finding the Fourth Proportional to 513,275.56, 708,335.94 and 286,930.60
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Solution
The fourth proportional to 513,275.56, 708,335.94 and 286,930.60 is: 395,972.99
Step by Step Solution
- Step 1: Write the proportion equation
513,275.56 : 708,335.94 = 286,930.60 : x - Step 2: Convert to fraction form
513,275.56/708,335.94 = 286,930.60/x - Step 3: Cross multiply
513,275.56x = 708,335.94 × 286,930.60 - Step 4: Simplify right side
513,275.56x = 203,243,256,265.76 - Step 5: Solve for x
x = 203,243,256,265.76/513,275.56 - Step 6: Final answer
x = 395,972.99
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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.