Finding the Fourth Proportional to 513,378.96, 708,178.56 and 298,495.28
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Solution
The fourth proportional to 513,378.96, 708,178.56 and 298,495.28 is: 411,758.12
Step by Step Solution
- Step 1: Write the proportion equation
513,378.96 : 708,178.56 = 298,495.28 : x - Step 2: Convert to fraction form
513,378.96/708,178.56 = 298,495.28/x - Step 3: Cross multiply
513,378.96x = 708,178.56 × 298,495.28 - Step 4: Simplify right side
513,378.96x = 211,387,957,557.20 - Step 5: Solve for x
x = 211,387,957,557.20/513,378.96 - Step 6: Final answer
x = 411,758.12
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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.