Finding the Fourth Proportional to 668,838.68, 1,003,258.71 and 313,853.05
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Solution
The fourth proportional to 668,838.68, 1,003,258.71 and 313,853.05 is: 470,779.89
Step by Step Solution
- Step 1: Write the proportion equation
668,838.68 : 1,003,258.71 = 313,853.05 : x - Step 2: Convert to fraction form
668,838.68/1,003,258.71 = 313,853.05/x - Step 3: Cross multiply
668,838.68x = 1,003,258.71 × 313,853.05 - Step 4: Simplify right side
668,838.68x = 314,875,801,683.31 - Step 5: Solve for x
x = 314,875,801,683.31/668,838.68 - Step 6: Final answer
x = 470,779.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.