Finding the Fourth Proportional to 708,902.26, 978,246.12 and 402,936.10
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Solution
The fourth proportional to 708,902.26, 978,246.12 and 402,936.10 is: 556,029.65
Step by Step Solution
- Step 1: Write the proportion equation
708,902.26 : 978,246.12 = 402,936.10 : x - Step 2: Convert to fraction form
708,902.26/978,246.12 = 402,936.10/x - Step 3: Cross multiply
708,902.26x = 978,246.12 × 402,936.10 - Step 4: Simplify right side
708,902.26x = 394,170,676,432.93 - Step 5: Solve for x
x = 394,170,676,432.93/708,902.26 - Step 6: Final answer
x = 556,029.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.