Finding the Fourth Proportional to 708,404.19, 977,589.18 and 386,113.29
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Solution
The fourth proportional to 708,404.19, 977,589.18 and 386,113.29 is: 532,831.65
Step by Step Solution
- Step 1: Write the proportion equation
708,404.19 : 977,589.18 = 386,113.29 : x - Step 2: Convert to fraction form
708,404.19/977,589.18 = 386,113.29/x - Step 3: Cross multiply
708,404.19x = 977,589.18 × 386,113.29 - Step 4: Simplify right side
708,404.19x = 377,460,174,558.20 - Step 5: Solve for x
x = 377,460,174,558.20/708,404.19 - Step 6: Final answer
x = 532,831.65
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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.