Finding the Fourth Proportional to 520,059.93, 717,468.98 and 316,077.99
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Solution
The fourth proportional to 520,059.93, 717,468.98 and 316,077.99 is: 436,057.73
Step by Step Solution
- Step 1: Write the proportion equation
520,059.93 : 717,468.98 = 316,077.99 : x - Step 2: Convert to fraction form
520,059.93/717,468.98 = 316,077.99/x - Step 3: Cross multiply
520,059.93x = 717,468.98 × 316,077.99 - Step 4: Simplify right side
520,059.93x = 226,776,153,875.95 - Step 5: Solve for x
x = 226,776,153,875.95/520,059.93 - Step 6: Final answer
x = 436,057.73
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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.