Finding the Fourth Proportional to 680,710.42, 939,347.58 and 374,780.44
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Solution
The fourth proportional to 680,710.42, 939,347.58 and 374,780.44 is: 517,178.95
Step by Step Solution
- Step 1: Write the proportion equation
680,710.42 : 939,347.58 = 374,780.44 : x - Step 2: Convert to fraction form
680,710.42/939,347.58 = 374,780.44/x - Step 3: Cross multiply
680,710.42x = 939,347.58 × 374,780.44 - Step 4: Simplify right side
680,710.42x = 352,049,099,345.34 - Step 5: Solve for x
x = 352,049,099,345.34/680,710.42 - Step 6: Final answer
x = 517,178.95
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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.