Finding the Fourth Proportional to 708,331.66, 977,509.74 and 386,059.44
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Solution
The fourth proportional to 708,331.66, 977,509.74 and 386,059.44 is: 532,768.59
Step by Step Solution
- Step 1: Write the proportion equation
708,331.66 : 977,509.74 = 386,059.44 : x - Step 2: Convert to fraction form
708,331.66/977,509.74 = 386,059.44/x - Step 3: Cross multiply
708,331.66x = 977,509.74 × 386,059.44 - Step 4: Simplify right side
708,331.66x = 377,376,862,818.95 - Step 5: Solve for x
x = 377,376,862,818.95/708,331.66 - Step 6: Final answer
x = 532,768.59
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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.