Finding the Fourth Proportional to 708,338.99, 977,479.35 and 386,042.17
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Solution
The fourth proportional to 708,338.99, 977,479.35 and 386,042.17 is: 532,722.69
Step by Step Solution
- Step 1: Write the proportion equation
708,338.99 : 977,479.35 = 386,042.17 : x - Step 2: Convert to fraction form
708,338.99/977,479.35 = 386,042.17/x - Step 3: Cross multiply
708,338.99x = 977,479.35 × 386,042.17 - Step 4: Simplify right side
708,338.99x = 377,348,249,404.19 - Step 5: Solve for x
x = 377,348,249,404.19/708,338.99 - Step 6: Final answer
x = 532,722.69
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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.