Finding the Fourth Proportional to 1,395,178.19, 2,091,702.83 and 636,489.08
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Solution
The fourth proportional to 1,395,178.19, 2,091,702.83 and 636,489.08 is: 954,248.00
Step by Step Solution
- Step 1: Write the proportion equation
1,395,178.19 : 2,091,702.83 = 636,489.08 : x - Step 2: Convert to fraction form
1,395,178.19/2,091,702.83 = 636,489.08/x - Step 3: Cross multiply
1,395,178.19x = 2,091,702.83 × 636,489.08 - Step 4: Simplify right side
1,395,178.19x = 1,331,346,001,032.81 - Step 5: Solve for x
x = 1,331,346,001,032.81/1,395,178.19 - Step 6: Final answer
x = 954,248.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.